diff --git a/partisan-lean/2018/README.md b/partisan-lean/2018/README.md
new file mode 100644
index 0000000..5f815d3
--- /dev/null
+++ b/partisan-lean/2018/README.md
@@ -0,0 +1,7 @@
+# FiveThirtyEight's Partisan Lean (2018)
+
+⚠️ The data in this folder is out of date. Please see the [toplevel folder in the `partisan-lean`](../) dataset for the most up-to-date partisan-lean numbers.
+
+This directory contains the data for FiveThirtyEight's partisan lean, which is used in our election forecasts.
+
+Partisan lean is the average difference between how a state or district votes and how the country votes overall, with 2016 presidential election results weighted 50 percent, 2012 presidential election results weighted 25 percent and results from elections for the state legislature weighted 25 percent.
diff --git a/partisan-lean/2018/fivethirtyeight_partisan_lean_DISTRICTS.csv b/partisan-lean/2018/fivethirtyeight_partisan_lean_DISTRICTS.csv
new file mode 100644
index 0000000..381f952
--- /dev/null
+++ b/partisan-lean/2018/fivethirtyeight_partisan_lean_DISTRICTS.csv
@@ -0,0 +1,436 @@
+district,2018
+AK-1,R+15.21
+AL-1,R+28.61
+AL-2,R+30.97
+AL-3,R+31.37
+AL-4,R+59.81
+AL-5,R+32.81
+AL-6,R+47.21
+AL-7,D+41.69
+AR-1,R+30
+AR-2,R+9.63
+AR-3,R+30.8
+AR-4,R+29.13
+AZ-1,R+5.56
+AZ-2,R+1.22
+AZ-3,D+24.11
+AZ-4,R+42.86
+AZ-5,R+27.79
+AZ-6,R+17.56
+AZ-7,D+43.88
+AZ-8,R+26.32
+AZ-9,D+8.38
+CA-1,R+22.53
+CA-10,R+0.77
+CA-11,D+41.1
+CA-12,D+71.57
+CA-13,D+75.93
+CA-14,D+52.03
+CA-15,D+39.23
+CA-16,D+16.83
+CA-17,D+47.1
+CA-18,D+44.6
+CA-19,D+45.2
+CA-2,D+40.5
+CA-20,D+42.4
+CA-21,D+10.07
+CA-22,R+15.3
+CA-23,R+27.1
+CA-24,D+13.17
+CA-25,R+0.1
+CA-26,D+14.07
+CA-27,D+30.3
+CA-28,D+43.83
+CA-29,D+55.47
+CA-3,D+8.17
+CA-30,D+36.03
+CA-31,D+15.63
+CA-32,D+32.87
+CA-33,D+31.5
+CA-34,D+67.6
+CA-35,D+35.5
+CA-36,D+2.97
+CA-37,D+70.83
+CA-38,D+33.07
+CA-39,D+0.53
+CA-4,R+19.9
+CA-40,D+63.97
+CA-41,D+23.03
+CA-42,R+17
+CA-43,D+56.5
+CA-44,D+66.87
+CA-45,R+4.3
+CA-46,D+30.03
+CA-47,D+24.6
+CA-48,R+6.73
+CA-49,R+1.13
+CA-5,D+40.03
+CA-50,R+21.57
+CA-51,D+42.2
+CA-52,D+13.17
+CA-53,D+27.63
+CA-6,D+39.5
+CA-7,D+4.97
+CA-8,R+18.67
+CA-9,D+14.33
+CO-1,D+40.37
+CO-2,D+16.77
+CO-3,R+13.56
+CO-4,R+25.39
+CO-5,R+26.49
+CO-6,D+4.07
+CO-7,D+9.37
+CT-1,D+20.56
+CT-2,D+2.29
+CT-3,D+15.02
+CT-4,D+14.96
+CT-5,D+1.39
+DE-1,D+13.66
+FL-1,R+43.9
+FL-10,D+20.46
+FL-11,R+32.9
+FL-12,R+19.8
+FL-13,D+0.8
+FL-14,D+12.7
+FL-15,R+13.44
+FL-16,R+14.9
+FL-17,R+28.47
+FL-18,R+12.27
+FL-19,R+26.9
+FL-2,R+38.84
+FL-20,D+58.3
+FL-21,D+15.26
+FL-22,D+10.06
+FL-23,D+20.3
+FL-24,D+64.03
+FL-25,R+9.3
+FL-26,D+9.8
+FL-27,D+10.4
+FL-3,R+20.47
+FL-4,R+34.67
+FL-5,D+21.43
+FL-6,R+18.1
+FL-7,R+0.04
+FL-8,R+23.54
+FL-9,D+7.76
+GA-1,R+20.37
+GA-10,R+31.47
+GA-11,R+34.2
+GA-12,R+20.47
+GA-13,D+36.93
+GA-14,R+56.97
+GA-2,D+8
+GA-3,R+37.7
+GA-4,D+45.66
+GA-5,D+65.43
+GA-6,R+14.5
+GA-7,R+17.24
+GA-8,R+33.04
+GA-9,R+63.94
+HI-1,D+35.57
+HI-2,D+36.37
+IA-1,D+0.74
+IA-2,D+0.14
+IA-3,R+2.42
+IA-4,R+22.46
+ID-1,R+39.58
+ID-2,R+29.95
+IL-1,D+51.63
+IL-10,D+21.13
+IL-11,D+17.47
+IL-12,R+13.27
+IL-13,R+7.7
+IL-14,R+9.87
+IL-15,R+44.67
+IL-16,R+17.97
+IL-17,D+1.26
+IL-18,R+29.9
+IL-2,D+56.06
+IL-3,D+10.7
+IL-4,D+63.26
+IL-5,D+38.53
+IL-6,R+2
+IL-7,D+73.33
+IL-8,D+16.03
+IL-9,D+36.77
+IN-1,D+14.48
+IN-2,R+21.99
+IN-3,R+34.12
+IN-4,R+32.59
+IN-5,R+15.32
+IN-6,R+36.42
+IN-7,D+22.54
+IN-8,R+30.59
+IN-9,R+25.29
+KS-1,R+46.55
+KS-2,R+19.05
+KS-3,R+4.75
+KS-4,R+29.02
+KY-1,R+39.53
+KY-2,R+31.76
+KY-3,D+18.54
+KY-4,R+29.23
+KY-5,R+54.43
+KY-6,R+10.5
+LA-1,R+41.19
+LA-2,D+54.08
+LA-3,R+35.19
+LA-4,R+20.96
+LA-5,R+25.89
+LA-6,R+32.42
+MA-1,D+27.23
+MA-2,D+22.96
+MA-3,D+23.9
+MA-4,D+24.96
+MA-5,D+43.3
+MA-6,D+19.06
+MA-7,D+73.96
+MA-8,D+26.53
+MA-9,D+14.8
+MD-1,R+30.39
+MD-2,D+21.88
+MD-3,D+24.44
+MD-4,D+53.68
+MD-5,D+28.81
+MD-6,D+10.44
+MD-7,D+51.28
+MD-8,D+27.84
+ME-1,D+14.87
+ME-2,R+6.13
+MI-1,R+18.64
+MI-10,R+27.01
+MI-11,R+6.41
+MI-12,D+26.99
+MI-13,D+62.42
+MI-14,D+59.72
+MI-2,R+17.71
+MI-3,R+10.38
+MI-4,R+20.88
+MI-5,D+8.59
+MI-6,R+7.74
+MI-7,R+14.04
+MI-8,R+7.18
+MI-9,D+8.62
+MN-1,R+10.99
+MN-2,R+2.29
+MN-3,D+5.01
+MN-4,D+28.08
+MN-5,D+51.78
+MN-6,R+23.65
+MN-7,R+25.32
+MN-8,R+10.09
+MO-1,D+55.63
+MO-2,R+15.61
+MO-3,R+38.14
+MO-4,R+35.77
+MO-5,D+11.99
+MO-6,R+31.81
+MO-7,R+46.41
+MO-8,R+51.07
+MS-1,R+29.99
+MS-2,D+30.44
+MS-3,R+22.99
+MS-4,R+39.29
+MT-1,R+17.95
+NC-1,D+35
+NC-10,R+24.4
+NC-11,R+28.26
+NC-12,D+36.87
+NC-13,R+10.5
+NC-2,R+12.7
+NC-3,R+23.66
+NC-4,D+34.8
+NC-5,R+18.43
+NC-6,R+16
+NC-7,R+18
+NC-8,R+15.4
+NC-9,R+13.56
+ND-1,R+33.68
+NE-1,R+19.83
+NE-2,R+3.9
+NE-3,R+50.8
+NH-1,R+4.37
+NH-2,D+1
+NJ-1,D+24.81
+NJ-10,D+71.78
+NJ-11,R+4.49
+NJ-12,D+31.54
+NJ-2,R+2.32
+NJ-3,R+4.56
+NJ-4,R+14.99
+NJ-5,R+3.69
+NJ-6,D+16.44
+NJ-7,R+3.29
+NJ-8,D+53.34
+NJ-9,D+31.38
+NM-1,D+14.53
+NM-2,R+10.77
+NM-3,D+14.63
+NV-1,D+25.27
+NV-2,R+16.03
+NV-3,R+5.53
+NV-4,D+1.7
+NY-1,R+10.44
+NY-10,D+53.46
+NY-11,R+7.51
+NY-12,D+62.59
+NY-13,D+85.52
+NY-14,D+56.99
+NY-15,D+88.09
+NY-16,D+48.72
+NY-17,D+16.16
+NY-18,R+2.24
+NY-19,R+4.88
+NY-2,R+7.01
+NY-20,D+13.39
+NY-21,R+9.64
+NY-22,R+12.88
+NY-23,R+12.68
+NY-24,D+5.29
+NY-25,D+14.99
+NY-26,D+20.52
+NY-27,R+22.88
+NY-3,D+2.52
+NY-4,D+8.49
+NY-5,D+73.42
+NY-6,D+31.86
+NY-7,D+74.62
+NY-8,D+71.39
+NY-9,D+67.49
+OH-1,R+9.42
+OH-10,R+8.48
+OH-11,D+61.42
+OH-12,R+14.02
+OH-13,D+10.52
+OH-14,R+11.75
+OH-15,R+15.12
+OH-16,R+16.85
+OH-2,R+17.38
+OH-3,D+36.22
+OH-4,R+30.05
+OH-5,R+22.98
+OH-6,R+35.55
+OH-7,R+25.95
+OH-8,R+34.48
+OH-9,D+24.05
+OK-1,R+28.1
+OK-2,R+43.7
+OK-3,R+49.5
+OK-4,R+34.76
+OK-5,R+13.5
+OR-1,D+18.35
+OR-2,R+21.45
+OR-3,D+45.28
+OR-4,R+0.32
+OR-5,D+1.32
+PA-1,R+0.68
+PA-10,R+10.68
+PA-11,R+27.24
+PA-12,R+35.04
+PA-13,R+44.51
+PA-14,R+27.78
+PA-15,R+40.38
+PA-16,R+17.48
+PA-17,R+5.78
+PA-18,D+25.22
+PA-2,D+47.99
+PA-3,D+81.42
+PA-4,D+14.76
+PA-5,D+25.49
+PA-6,D+4.72
+PA-7,D+0.52
+PA-8,R+4.98
+PA-9,R+30.54
+RI-1,D+34.62
+RI-2,D+18.12
+SC-1,R+18.95
+SC-2,R+22.55
+SC-3,R+39.72
+SC-4,R+29.99
+SC-5,R+20.35
+SC-6,D+34.41
+SC-7,R+20.15
+SD-1,R+30.6
+TN-1,R+57.66
+TN-2,R+39.72
+TN-3,R+36.86
+TN-4,R+42.19
+TN-5,D+12.68
+TN-6,R+49.79
+TN-7,R+41.12
+TN-8,R+38.79
+TN-9,D+53.64
+TX-1,R+51.65
+TX-10,R+18.51
+TX-11,R+64.68
+TX-12,R+37.51
+TX-13,R+68.25
+TX-14,R+25.48
+TX-15,D+10.75
+TX-16,D+31.35
+TX-17,R+24.91
+TX-18,D+49.75
+TX-19,R+54.55
+TX-2,R+20.98
+TX-20,D+18.52
+TX-21,R+19.65
+TX-22,R+19.41
+TX-23,R+4.28
+TX-24,R+17.28
+TX-25,R+22.98
+TX-26,R+35.65
+TX-27,R+28.85
+TX-28,D+14.72
+TX-29,D+35.75
+TX-3,R+25.18
+TX-30,D+54.85
+TX-31,R+21.25
+TX-32,R+9.58
+TX-33,D+42.09
+TX-34,D+16.15
+TX-35,D+26.19
+TX-36,R+52.71
+TX-4,R+57.81
+TX-5,R+34.65
+TX-6,R+19.58
+TX-7,R+11.85
+TX-8,R+56.65
+TX-9,D+54.15
+UT-1,R+40.52
+UT-2,R+25.58
+UT-3,R+38.85
+UT-4,R+20.12
+VA-1,R+16.99
+VA-10,D+1.55
+VA-11,D+30.25
+VA-2,R+7.79
+VA-3,D+28.48
+VA-4,D+16.91
+VA-5,R+14.35
+VA-6,R+27.72
+VA-7,R+12.59
+VA-8,D+42.58
+VA-9,R+41.82
+VT-1,D+24.2
+WA-1,D+10.67
+WA-10,D+8.87
+WA-2,D+18.01
+WA-3,R+9.29
+WA-4,R+26.26
+WA-5,R+15.79
+WA-6,D+9.37
+WA-7,D+63.17
+WA-8,R+1.26
+WA-9,D+40.57
+WI-1,R+11.49
+WI-2,D+33.91
+WI-3,R+2.56
+WI-4,D+48.74
+WI-5,R+24.49
+WI-6,R+16.93
+WI-7,R+17.86
+WI-8,R+16.19
+WV-1,R+30.43
+WV-2,R+25.39
+WV-3,R+37.33
+WY-1,R+48.35
\ No newline at end of file
diff --git a/partisan-lean/2018/fivethirtyeight_partisan_lean_STATES.csv b/partisan-lean/2018/fivethirtyeight_partisan_lean_STATES.csv
new file mode 100644
index 0000000..a6d6b8b
--- /dev/null
+++ b/partisan-lean/2018/fivethirtyeight_partisan_lean_STATES.csv
@@ -0,0 +1,51 @@
+state,2018
+Alabama,R+27
+Alaska,R+15
+Arizona,R+9
+Arkansas,R+24
+California,D+24
+Colorado,D+1
+Connecticut,D+11
+Delaware,D+14
+Florida,R+5
+Georgia,R+12
+Hawaii,D+36
+Idaho,R+35
+Illinois,D+13
+Indiana,R+18
+Iowa,R+6
+Kansas,R+23
+Kentucky,R+23
+Louisiana,R+17
+Maine,D+5
+Maryland,D+23
+Massachusetts,D+29
+Michigan,D+1
+Minnesota,D+2
+Mississippi,R+15
+Missouri,R+19
+Montana,R+18
+Nebraska,R+24
+Nevada,R+1
+New Hampshire,R+2
+New Jersey,D+13
+New Mexico,D+7
+New York,D+22
+North Carolina,R+5
+North Dakota,R+33
+Ohio,R+7
+Oklahoma,R+34
+Oregon,D+9
+Pennsylvania,R+1
+Rhode Island,D+26
+South Carolina,R+17
+South Dakota,R+31
+Tennessee,R+28
+Texas,R+17
+Utah,R+31
+Vermont,D+24
+Virginia,D+0
+Washington,D+12
+West Virginia,R+30
+Wisconsin,R+1
+Wyoming,R+47
\ No newline at end of file
diff --git a/partisan-lean/2020/README.md b/partisan-lean/2020/README.md
new file mode 100644
index 0000000..531aac3
--- /dev/null
+++ b/partisan-lean/2020/README.md
@@ -0,0 +1,8 @@
+# FiveThirtyEight's Partisan Lean (2020)
+
+⚠️ The data in this folder is out of date. Please see the [toplevel folder in the `partisan-lean`](../) dataset for the most up-to-date partisan-lean numbers.
+
+This directory contains the data for FiveThirtyEight's partisan lean, which is used in our election forecasts.
+
+Partisan lean is the average difference between how a state or district votes and how the country votes overall, with 2016 presidential election results weighted 50 percent, 2012 presidential election results weighted 25 percent and results from elections for the state legislature weighted 25 percent.
+
diff --git a/partisan-lean/2020/fivethirtyeight_partisan_lean_DISTRICTS.csv b/partisan-lean/2020/fivethirtyeight_partisan_lean_DISTRICTS.csv
new file mode 100644
index 0000000..d4be0f5
--- /dev/null
+++ b/partisan-lean/2020/fivethirtyeight_partisan_lean_DISTRICTS.csv
@@ -0,0 +1,436 @@
+district,2020
+AK-1,R+15.52
+AL-1,R+28.78
+AL-2,R+31.15
+AL-3,R+31.55
+AL-4,R+60.1
+AL-5,R+32.99
+AL-6,R+47.44
+AL-7,D+41.48
+AR-1,R+31.56
+AR-2,R+11.2
+AR-3,R+32.36
+AR-4,R+30.69
+AZ-1,R+3.79
+AZ-2,D+0.54
+AZ-3,D+25.82
+AZ-4,R+41.24
+AZ-5,R+26.08
+AZ-6,R+15.81
+AZ-7,D+45.47
+AZ-8,R+24.61
+AZ-9,D+10.13
+CA-1,R+23.88
+CA-10,R+2.2
+CA-11,D+39.96
+CA-12,D+71.11
+CA-13,D+75.62
+CA-14,D+51.09
+CA-15,D+38.07
+CA-16,D+15.44
+CA-17,D+46.06
+CA-18,D+43.52
+CA-19,D+44.13
+CA-2,D+39.35
+CA-20,D+41.28
+CA-21,D+8.65
+CA-22,R+16.7
+CA-23,R+28.41
+CA-24,D+11.76
+CA-25,R+1.54
+CA-26,D+12.66
+CA-27,D+29.02
+CA-28,D+42.74
+CA-29,D+54.59
+CA-3,D+6.74
+CA-30,D+34.82
+CA-31,D+14.24
+CA-32,D+31.62
+CA-33,D+30.24
+CA-34,D+67.03
+CA-35,D+34.28
+CA-36,D+1.53
+CA-37,D+70.35
+CA-38,D+31.82
+CA-39,R+0.9
+CA-4,R+21.27
+CA-40,D+63.3
+CA-41,D+21.69
+CA-42,R+18.39
+CA-43,D+55.65
+CA-44,D+66.27
+CA-45,R+5.73
+CA-46,D+28.75
+CA-47,D+23.27
+CA-48,R+8.16
+CA-49,R+2.57
+CA-5,D+38.88
+CA-50,R+22.92
+CA-51,D+41.08
+CA-52,D+11.76
+CA-53,D+26.33
+CA-6,D+38.34
+CA-7,D+3.53
+CA-8,R+20.04
+CA-9,D+12.93
+CO-1,D+39
+CO-2,D+15.13
+CO-3,R+15.22
+CO-4,R+26.96
+CO-5,R+28.04
+CO-6,D+2.38
+CO-7,D+7.69
+CT-1,D+19.61
+CT-2,D+1.31
+CT-3,D+14.06
+CT-4,D+13.99
+CT-5,D+0.41
+DE-1,D+12.13
+FL-1,R+44.25
+FL-10,D+20.09
+FL-11,R+33.27
+FL-12,R+20.18
+FL-13,D+0.42
+FL-14,D+12.32
+FL-15,R+13.81
+FL-16,R+15.28
+FL-17,R+28.84
+FL-18,R+12.65
+FL-19,R+27.27
+FL-2,R+39.19
+FL-20,D+57.97
+FL-21,D+14.89
+FL-22,D+9.69
+FL-23,D+19.92
+FL-24,D+63.71
+FL-25,R+9.68
+FL-26,D+9.42
+FL-27,D+10.02
+FL-3,R+20.84
+FL-4,R+35.03
+FL-5,D+21.06
+FL-6,R+18.48
+FL-7,R+0.41
+FL-8,R+23.91
+FL-9,D+7.39
+GA-1,R+21.32
+GA-10,R+32.35
+GA-11,R+35.07
+GA-12,R+21.42
+GA-13,D+36.09
+GA-14,R+57.57
+GA-2,D+7
+GA-3,R+38.53
+GA-4,D+44.91
+GA-5,D+64.96
+GA-6,R+15.48
+GA-7,R+18.2
+GA-8,R+33.91
+GA-9,R+64.43
+HI-1,D+35.73
+HI-2,D+36.52
+IA-1,R+2.84
+IA-2,R+3.44
+IA-3,R+6
+IA-4,R+25.87
+ID-1,R+37.21
+ID-2,R+27.6
+IL-1,D+51.46
+IL-10,D+21.12
+IL-11,D+17.47
+IL-12,R+13.26
+IL-13,R+7.68
+IL-14,R+9.85
+IL-15,R+44.8
+IL-16,R+17.97
+IL-17,D+1.29
+IL-18,R+29.95
+IL-2,D+55.86
+IL-3,D+10.71
+IL-4,D+62.99
+IL-5,D+38.45
+IL-6,R+1.98
+IL-7,D+72.94
+IL-8,D+16.04
+IL-9,D+36.69
+IN-1,D+15.27
+IN-2,R+21.23
+IN-3,R+33.43
+IN-4,R+31.89
+IN-5,R+14.53
+IN-6,R+35.75
+IN-7,D+23.3
+IN-8,R+29.87
+IN-9,R+24.54
+KS-1,R+44.54
+KS-2,R+16.9
+KS-3,R+2.58
+KS-4,R+26.91
+KY-1,R+39.94
+KY-2,R+32.17
+KY-3,D+18.14
+KY-4,R+29.63
+KY-5,R+54.86
+KY-6,R+10.89
+LA-1,R+42.91
+LA-2,D+52.44
+LA-3,R+36.95
+LA-4,R+22.78
+LA-5,R+27.69
+LA-6,R+34.19
+MA-1,D+20.85
+MA-2,D+16.57
+MA-3,D+17.51
+MA-4,D+18.58
+MA-5,D+36.97
+MA-6,D+12.66
+MA-7,D+67.85
+MA-8,D+20.15
+MA-9,D+8.39
+MD-1,R+29.89
+MD-2,D+22.37
+MD-3,D+24.94
+MD-4,D+54.17
+MD-5,D+29.31
+MD-6,D+10.94
+MD-7,D+51.77
+MD-8,D+28.34
+ME-1,D+12.99
+ME-2,R+8.03
+MI-1,R+14.29
+MI-10,R+22.77
+MI-11,R+1.97
+MI-12,D+31.14
+MI-13,D+65.39
+MI-14,D+62.81
+MI-2,R+13.34
+MI-3,R+5.95
+MI-4,R+16.55
+MI-5,D+13
+MI-6,R+3.31
+MI-7,R+9.64
+MI-8,R+2.74
+MI-9,D+13.03
+MN-1,R+11.58
+MN-2,R+2.89
+MN-3,D+4.41
+MN-4,D+27.51
+MN-5,D+51.31
+MN-6,R+24.23
+MN-7,R+25.89
+MN-8,R+10.68
+MO-1,D+54.27
+MO-2,R+17.46
+MO-3,R+39.78
+MO-4,R+37.44
+MO-5,D+10.11
+MO-6,R+33.52
+MO-7,R+47.92
+MO-8,R+52.5
+MS-1,R+29.32
+MS-2,D+31.11
+MS-3,R+22.28
+MS-4,R+38.7
+MT-1,R+18.36
+NC-1,D+11.44
+NC-10,R+36.71
+NC-11,R+16.31
+NC-12,D+35.63
+NC-13,R+35.27
+NC-2,D+20.48
+NC-3,R+23.25
+NC-4,D+30.42
+NC-5,R+34.65
+NC-6,D+19.34
+NC-7,R+19.29
+NC-8,R+8.45
+NC-9,R+11.45
+ND-1,R+33.96
+NE-1,R+20.65
+NE-2,R+4.75
+NE-3,R+51.41
+NH-1,R+3.31
+NH-2,D+2.06
+NJ-1,D+22.25
+NJ-10,D+69.68
+NJ-11,R+7.09
+NJ-12,D+29.02
+NJ-2,R+4.93
+NJ-3,R+7.16
+NJ-4,R+17.57
+NJ-5,R+6.29
+NJ-6,D+13.86
+NJ-7,R+5.89
+NJ-8,D+51
+NJ-9,D+28.85
+NM-1,D+15.32
+NM-2,R+9.97
+NM-3,D+15.42
+NV-1,D+25.86
+NV-2,R+15.42
+NV-3,R+4.91
+NV-4,D+2.32
+NY-1,R+9.96
+NY-10,D+53.71
+NY-11,R+7.02
+NY-12,D+62.75
+NY-13,D+85.36
+NY-14,D+57.21
+NY-15,D+87.88
+NY-16,D+49.02
+NY-17,D+16.63
+NY-18,R+1.75
+NY-19,R+4.39
+NY-2,R+6.52
+NY-20,D+13.87
+NY-21,R+9.16
+NY-22,R+12.4
+NY-23,R+12.2
+NY-24,D+5.78
+NY-25,D+15.46
+NY-26,D+20.98
+NY-27,R+22.43
+NY-3,D+3.01
+NY-4,D+8.97
+NY-5,D+73.45
+NY-6,D+32.27
+NY-7,D+74.63
+NY-8,D+71.45
+NY-9,D+67.6
+OH-1,R+8.11
+OH-10,R+7.17
+OH-11,D+62.22
+OH-12,R+12.72
+OH-13,D+11.82
+OH-14,R+10.45
+OH-15,R+13.83
+OH-16,R+15.57
+OH-2,R+16.1
+OH-3,D+37.36
+OH-4,R+28.85
+OH-5,R+21.73
+OH-6,R+34.39
+OH-7,R+24.72
+OH-8,R+33.32
+OH-9,D+25.29
+OK-1,R+27.7
+OK-2,R+43.31
+OK-3,R+49.12
+OK-4,R+34.37
+OK-5,R+13.09
+OR-1,D+17.13
+OR-2,R+22.65
+OR-3,D+44.23
+OR-4,R+1.57
+OR-5,D+0.07
+PA-1,R+0.86
+PA-10,R+10.87
+PA-11,R+27.45
+PA-12,R+35.26
+PA-13,R+44.74
+PA-14,R+27.98
+PA-15,R+40.6
+PA-16,R+17.67
+PA-17,R+5.96
+PA-18,D+25.02
+PA-2,D+47.76
+PA-3,D+81.09
+PA-4,D+14.57
+PA-5,D+25.29
+PA-6,D+4.54
+PA-7,D+0.34
+PA-8,R+5.16
+PA-9,R+30.75
+RI-1,D+33.03
+RI-2,D+16.57
+SC-1,R+18.04
+SC-2,R+21.64
+SC-3,R+38.79
+SC-4,R+29.07
+SC-5,R+19.44
+SC-6,D+35.34
+SC-7,R+19.24
+SD-1,R+28.19
+TN-1,R+57.23
+TN-2,R+39.22
+TN-3,R+36.34
+TN-4,R+41.69
+TN-5,D+13.24
+TN-6,R+49.32
+TN-7,R+40.62
+TN-8,R+38.28
+TN-9,D+54.09
+TX-1,R+51.44
+TX-10,R+18.54
+TX-11,R+64.32
+TX-12,R+37.44
+TX-13,R+67.83
+TX-14,R+25.48
+TX-15,D+10.71
+TX-16,D+31.4
+TX-17,R+24.91
+TX-18,D+49.95
+TX-19,R+54.31
+TX-2,R+21
+TX-20,D+18.5
+TX-21,R+19.67
+TX-22,R+19.44
+TX-23,R+4.34
+TX-24,R+17.31
+TX-25,R+22.99
+TX-26,R+35.58
+TX-27,R+28.83
+TX-28,D+14.69
+TX-29,D+35.83
+TX-3,R+25.18
+TX-30,D+55.11
+TX-31,R+21.26
+TX-32,R+9.63
+TX-33,D+42.21
+TX-34,D+16.12
+TX-35,D+26.2
+TX-36,R+52.5
+TX-4,R+57.54
+TX-5,R+34.59
+TX-6,R+19.6
+TX-7,R+11.89
+TX-8,R+56.39
+TX-9,D+54.4
+UT-1,R+39.4
+UT-2,R+24.44
+UT-3,R+37.73
+UT-4,R+18.96
+VA-1,R+9.91
+VA-10,D+8.67
+VA-11,D+36.89
+VA-2,R+0.65
+VA-3,D+35.18
+VA-4,D+23.87
+VA-5,R+7.25
+VA-6,R+20.8
+VA-7,R+5.47
+VA-8,D+48.81
+VA-9,R+35.26
+VT-1,D+23.93
+WA-1,D+14.44
+WA-10,D+12.65
+WA-2,D+21.71
+WA-3,R+5.5
+WA-4,R+22.61
+WA-5,R+12.04
+WA-6,D+13.15
+WA-7,D+65.78
+WA-8,D+2.55
+WA-9,D+43.88
+WI-1,R+12.84
+WI-2,D+32.59
+WI-3,R+3.91
+WI-4,D+47.46
+WI-5,R+25.82
+WI-6,R+18.27
+WI-7,R+19.2
+WI-8,R+17.54
+WV-1,R+33.3
+WV-2,R+28.32
+WV-3,R+40.11
+WY-1,R+44.56
\ No newline at end of file
diff --git a/partisan-lean/2020/fivethirtyeight_partisan_lean_STATES.csv b/partisan-lean/2020/fivethirtyeight_partisan_lean_STATES.csv
new file mode 100644
index 0000000..7cfab66
--- /dev/null
+++ b/partisan-lean/2020/fivethirtyeight_partisan_lean_STATES.csv
@@ -0,0 +1,51 @@
+state,2020
+Alabama,R+27
+Alaska,R+16
+Arizona,R+8
+Arkansas,R+26
+California,D+22
+Colorado,R+0
+Connecticut,D+10
+Delaware,D+12
+Florida,R+6
+Georgia,R+13
+Hawaii,D+36
+Idaho,R+33
+Illinois,D+13
+Indiana,R+17
+Iowa,R+9
+Kansas,R+21
+Kentucky,R+24
+Louisiana,R+19
+Maine,D+3
+Maryland,D+23
+Massachusetts,D+23
+Michigan,D+6
+Minnesota,D+1
+Mississippi,R+15
+Missouri,R+21
+Montana,R+18
+Nebraska,R+25
+Nevada,R+1
+New Hampshire,R+1
+New Jersey,D+11
+New Mexico,D+8
+New York,D+22
+North Carolina,R+4
+North Dakota,R+34
+Ohio,R+6
+Oklahoma,R+33
+Oregon,D+7
+Pennsylvania,R+1
+Rhode Island,D+24
+South Carolina,R+16
+South Dakota,R+28
+Tennessee,R+28
+Texas,R+17
+Utah,R+30
+Vermont,D+24
+Virginia,D+7
+Washington,D+15
+West Virginia,R+33
+Wisconsin,R+3
+Wyoming,R+45
\ No newline at end of file
diff --git a/partisan-lean/README.md b/partisan-lean/README.md
index 25b458a..3e47e0d 100644
--- a/partisan-lean/README.md
+++ b/partisan-lean/README.md
@@ -1,5 +1,14 @@
 # FiveThirtyEight's Partisan Lean
 
-This directory contains the data for FiveThirtyEight's partisan lean, which is used in our election forecasts.
+This directory contains the data for FiveThirtyEight's partisan lean metric, or the average margin difference between how a state or district votes and how the country votes overall. Positive numbers mean Democratic leans, while negative numbers mean Republican leans.
+
+This version of partisan lean, meant to be used for congressional and gubernatorial elections, is calculated as 50 percent the state or district’s lean relative to the nation in the most recent presidential election, 25 percent its relative lean in the second-most-recent presidential election and 25 percent a custom state-legislative lean based on the statewide popular vote in the four most recent state House elections. Presidential results by congressional district were calculated by [Daily Kos Elections](https://www.dailykos.com/stories/2020/11/19/1163009/-Daily-Kos-Elections-presidential-results-by-congressional-district-for-2020-2016-and-2012). 
+
+Due to redistricting and changes in methodology, partisan leans are not comparable across years. Additionally, the current congressional-district partisan leans in every state except Alaska, Delaware, North Dakota, South Dakota, Vermont and Wyoming are not applicable to the 2022 election because they do not take into account the 2021-22 redistricting process.
+
+
+Column | Description
+------|-------------------------
+`state`/`district` | The state or district the partisan lean is calculated for. 
+`2021` | Partisan lean as it stands after the 2020 election, taking the 2020 results into account. For congressional districts, scores correspond to the district lines for the 117th Congress and do not reflect the results of the 2021-22 redistricting process.
 
-Partisan lean is the average difference between how a state or district votes and how the country votes overall, with 2016 presidential election results weighted 50 percent, 2012 presidential election results weighted 25 percent and results from elections for the state legislature weighted 25 percent.
\ No newline at end of file
diff --git a/partisan-lean/fivethirtyeight_partisan_lean_DISTRICTS.csv b/partisan-lean/fivethirtyeight_partisan_lean_DISTRICTS.csv
index 3a4ef6f..7b091cd 100644
--- a/partisan-lean/fivethirtyeight_partisan_lean_DISTRICTS.csv
+++ b/partisan-lean/fivethirtyeight_partisan_lean_DISTRICTS.csv
@@ -1,436 +1,436 @@
-district,2018,2020
-AK-1,R+15.21,R+15.52
-AL-1,R+28.61,R+28.78
-AL-2,R+30.97,R+31.15
-AL-3,R+31.37,R+31.55
-AL-4,R+59.81,R+60.1
-AL-5,R+32.81,R+32.99
-AL-6,R+47.21,R+47.44
-AL-7,D+41.69,D+41.48
-AR-1,R+30,R+31.56
-AR-2,R+9.63,R+11.2
-AR-3,R+30.8,R+32.36
-AR-4,R+29.13,R+30.69
-AZ-1,R+5.56,R+3.79
-AZ-2,R+1.22,D+0.54
-AZ-3,D+24.11,D+25.82
-AZ-4,R+42.86,R+41.24
-AZ-5,R+27.79,R+26.08
-AZ-6,R+17.56,R+15.81
-AZ-7,D+43.88,D+45.47
-AZ-8,R+26.32,R+24.61
-AZ-9,D+8.38,D+10.13
-CA-1,R+22.53,R+23.88
-CA-10,R+0.77,R+2.2
-CA-11,D+41.1,D+39.96
-CA-12,D+71.57,D+71.11
-CA-13,D+75.93,D+75.62
-CA-14,D+52.03,D+51.09
-CA-15,D+39.23,D+38.07
-CA-16,D+16.83,D+15.44
-CA-17,D+47.1,D+46.06
-CA-18,D+44.6,D+43.52
-CA-19,D+45.2,D+44.13
-CA-2,D+40.5,D+39.35
-CA-20,D+42.4,D+41.28
-CA-21,D+10.07,D+8.65
-CA-22,R+15.3,R+16.7
-CA-23,R+27.1,R+28.41
-CA-24,D+13.17,D+11.76
-CA-25,R+0.1,R+1.54
-CA-26,D+14.07,D+12.66
-CA-27,D+30.3,D+29.02
-CA-28,D+43.83,D+42.74
-CA-29,D+55.47,D+54.59
-CA-3,D+8.17,D+6.74
-CA-30,D+36.03,D+34.82
-CA-31,D+15.63,D+14.24
-CA-32,D+32.87,D+31.62
-CA-33,D+31.5,D+30.24
-CA-34,D+67.6,D+67.03
-CA-35,D+35.5,D+34.28
-CA-36,D+2.97,D+1.53
-CA-37,D+70.83,D+70.35
-CA-38,D+33.07,D+31.82
-CA-39,D+0.53,R+0.9
-CA-4,R+19.9,R+21.27
-CA-40,D+63.97,D+63.3
-CA-41,D+23.03,D+21.69
-CA-42,R+17,R+18.39
-CA-43,D+56.5,D+55.65
-CA-44,D+66.87,D+66.27
-CA-45,R+4.3,R+5.73
-CA-46,D+30.03,D+28.75
-CA-47,D+24.6,D+23.27
-CA-48,R+6.73,R+8.16
-CA-49,R+1.13,R+2.57
-CA-5,D+40.03,D+38.88
-CA-50,R+21.57,R+22.92
-CA-51,D+42.2,D+41.08
-CA-52,D+13.17,D+11.76
-CA-53,D+27.63,D+26.33
-CA-6,D+39.5,D+38.34
-CA-7,D+4.97,D+3.53
-CA-8,R+18.67,R+20.04
-CA-9,D+14.33,D+12.93
-CO-1,D+40.37,D+39
-CO-2,D+16.77,D+15.13
-CO-3,R+13.56,R+15.22
-CO-4,R+25.39,R+26.96
-CO-5,R+26.49,R+28.04
-CO-6,D+4.07,D+2.38
-CO-7,D+9.37,D+7.69
-CT-1,D+20.56,D+19.61
-CT-2,D+2.29,D+1.31
-CT-3,D+15.02,D+14.06
-CT-4,D+14.96,D+13.99
-CT-5,D+1.39,D+0.41
-DE-1,D+13.66,D+12.13
-FL-1,R+43.9,R+44.25
-FL-10,D+20.46,D+20.09
-FL-11,R+32.9,R+33.27
-FL-12,R+19.8,R+20.18
-FL-13,D+0.8,D+0.42
-FL-14,D+12.7,D+12.32
-FL-15,R+13.44,R+13.81
-FL-16,R+14.9,R+15.28
-FL-17,R+28.47,R+28.84
-FL-18,R+12.27,R+12.65
-FL-19,R+26.9,R+27.27
-FL-2,R+38.84,R+39.19
-FL-20,D+58.3,D+57.97
-FL-21,D+15.26,D+14.89
-FL-22,D+10.06,D+9.69
-FL-23,D+20.3,D+19.92
-FL-24,D+64.03,D+63.71
-FL-25,R+9.3,R+9.68
-FL-26,D+9.8,D+9.42
-FL-27,D+10.4,D+10.02
-FL-3,R+20.47,R+20.84
-FL-4,R+34.67,R+35.03
-FL-5,D+21.43,D+21.06
-FL-6,R+18.1,R+18.48
-FL-7,R+0.04,R+0.41
-FL-8,R+23.54,R+23.91
-FL-9,D+7.76,D+7.39
-GA-1,R+20.37,R+21.32
-GA-10,R+31.47,R+32.35
-GA-11,R+34.2,R+35.07
-GA-12,R+20.47,R+21.42
-GA-13,D+36.93,D+36.09
-GA-14,R+56.97,R+57.57
-GA-2,D+8,D+7
-GA-3,R+37.7,R+38.53
-GA-4,D+45.66,D+44.91
-GA-5,D+65.43,D+64.96
-GA-6,R+14.5,R+15.48
-GA-7,R+17.24,R+18.2
-GA-8,R+33.04,R+33.91
-GA-9,R+63.94,R+64.43
-HI-1,D+35.57,D+35.73
-HI-2,D+36.37,D+36.52
-IA-1,D+0.74,R+2.84
-IA-2,D+0.14,R+3.44
-IA-3,R+2.42,R+6
-IA-4,R+22.46,R+25.87
-ID-1,R+39.58,R+37.21
-ID-2,R+29.95,R+27.6
-IL-1,D+51.63,D+51.46
-IL-10,D+21.13,D+21.12
-IL-11,D+17.47,D+17.47
-IL-12,R+13.27,R+13.26
-IL-13,R+7.7,R+7.68
-IL-14,R+9.87,R+9.85
-IL-15,R+44.67,R+44.8
-IL-16,R+17.97,R+17.97
-IL-17,D+1.26,D+1.29
-IL-18,R+29.9,R+29.95
-IL-2,D+56.06,D+55.86
-IL-3,D+10.7,D+10.71
-IL-4,D+63.26,D+62.99
-IL-5,D+38.53,D+38.45
-IL-6,R+2,R+1.98
-IL-7,D+73.33,D+72.94
-IL-8,D+16.03,D+16.04
-IL-9,D+36.77,D+36.69
-IN-1,D+14.48,D+15.27
-IN-2,R+21.99,R+21.23
-IN-3,R+34.12,R+33.43
-IN-4,R+32.59,R+31.89
-IN-5,R+15.32,R+14.53
-IN-6,R+36.42,R+35.75
-IN-7,D+22.54,D+23.3
-IN-8,R+30.59,R+29.87
-IN-9,R+25.29,R+24.54
-KS-1,R+46.55,R+44.54
-KS-2,R+19.05,R+16.9
-KS-3,R+4.75,R+2.58
-KS-4,R+29.02,R+26.91
-KY-1,R+39.53,R+39.94
-KY-2,R+31.76,R+32.17
-KY-3,D+18.54,D+18.14
-KY-4,R+29.23,R+29.63
-KY-5,R+54.43,R+54.86
-KY-6,R+10.5,R+10.89
-LA-1,R+41.19,R+42.91
-LA-2,D+54.08,D+52.44
-LA-3,R+35.19,R+36.95
-LA-4,R+20.96,R+22.78
-LA-5,R+25.89,R+27.69
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+OK-2,-55.50552
+OK-3,-54.73032
+OK-4,-37.70145
+OK-5,-10.86969
+OR-1,23.41539
+OR-2,-19.37864
+OR-3,46.3491
+OR-4,-0.9534046
+OR-5,4.200062
+PA-1,1.288501
+PA-10,-8.183132
+PA-11,-26.4419
+PA-12,-39.47206
+PA-13,-48.06266
+PA-14,-31.2458
+PA-15,-46.79483
+PA-16,-22.36897
+PA-17,-2.300365
+PA-18,26.0029
+PA-2,40.1063
+PA-3,80.15927
+PA-4,19.26077
+PA-5,26.894
+PA-6,9.882301
+PA-7,0.3082011
+PA-8,-9.3874
+PA-9,-34.92347
+RI-1,33.21795
+RI-2,16.46872
+SC-1,-14.22772
+SC-2,-19.36782
+SC-3,-43.59715
+SC-4,-28.15738
+SC-5,-23.16782
+SC-6,29.73688
+SC-7,-24.63395
+SD-1,-32.23668
+TN-1,-60.15281
+TN-2,-36.2934
+TN-3,-38.45357
+TN-4,-43.37977
+TN-5,16.73503
+TN-6,-52.82217
+TN-7,-41.89844
+TN-8,-38.41991
+TN-9,53.28453
+TX-1,-50.29572
+TX-10,-9.226946
+TX-11,-64.30408
+TX-12,-30.21091
+TX-13,-65.92558
+TX-14,-24.64901
+TX-15,1.724621
+TX-16,31.43062
+TX-17,-18.24645
+TX-18,48.86392
+TX-19,-52.05698
+TX-2,-9.060513
+TX-20,23.13165
+TX-21,-10.20758
+TX-22,-8.336479
+TX-23,-5.148013
+TX-24,-3.543379
+TX-25,-16.44321
+TX-26,-23.32988
+TX-27,-28.78665
+TX-28,4.435054
+TX-29,32.18342
+TX-3,-10.51578
+TX-30,55.80079
+TX-31,-11.23388
+TX-32,2.478588
+TX-33,42.86412
+TX-34,4.759388
+TX-35,30.90172
+TX-36,-50.68528
+TX-4,-56.33728
+TX-5,-29.82908
+TX-6,-11.17891
+TX-7,1.008221
+TX-8,-49.65911
+TX-9,50.32849
+UT-1,-37.32347
+UT-2,-21.73263
+UT-3,-31.1591
+UT-4,-14.80237
+VA-1,-10.76528
+VA-10,12.48896
+VA-11,37.45406
+VA-2,-1.706376
+VA-3,30.80766
+VA-4,20.12532
+VA-5,-13.04978
+VA-6,-26.10554
+VA-7,-5.14001
+VA-8,51.48513
+VA-9,-45.58558
+VT-1,27.54904
+WA-1,13.94858
+WA-10,8.678684
+WA-2,19.99902
+WA-3,-10.40978
+WA-4,-25.18125
+WA-5,-15.80635
+WA-6,10.58745
+WA-7,66.84651
+WA-8,-0.0490487
+WA-9,42.77592
+WI-1,-13.71213
+WI-2,34.91674
+WI-3,-8.715729
+WI-4,49.02067
+WI-5,-20.88873
+WI-6,-19.8637
+WI-7,-24.20036
+WI-8,-20.55703
+WV-1,-34.40671
+WV-2,-29.26637
+WV-3,-43.58364
+WY-1,-49.73126
\ No newline at end of file
diff --git a/partisan-lean/fivethirtyeight_partisan_lean_STATES.csv b/partisan-lean/fivethirtyeight_partisan_lean_STATES.csv
index 2ddc086..4b08253 100644
--- a/partisan-lean/fivethirtyeight_partisan_lean_STATES.csv
+++ b/partisan-lean/fivethirtyeight_partisan_lean_STATES.csv
@@ -1,51 +1,52 @@
-state,2018,2020
-Alabama,R+27,R+27
-Alaska,R+15,R+16
-Arizona,R+9,R+8
-Arkansas,R+24,R+26
-California,D+24,D+22
-Colorado,D+1,R+0
-Connecticut,D+11,D+10
-Delaware,D+14,D+12
-Florida,R+5,R+6
-Georgia,R+12,R+13
-Hawaii,D+36,D+36
-Idaho,R+35,R+33
-Illinois,D+13,D+13
-Indiana,R+18,R+17
-Iowa,R+6,R+9
-Kansas,R+23,R+21
-Kentucky,R+23,R+24
-Louisiana,R+17,R+19
-Maine,D+5,D+3
-Maryland,D+23,D+23
-Massachusetts,D+29,D+23
-Michigan,D+1,D+6
-Minnesota,D+2,D+1
-Mississippi,R+15,R+15
-Missouri,R+19,R+21
-Montana,R+18,R+18
-Nebraska,R+24,R+25
-Nevada,R+1,R+1
-New Hampshire,R+2,R+1
-New Jersey,D+13,D+11
-New Mexico,D+7,D+8
-New York,D+22,D+22
-North Carolina,R+5,R+4
-North Dakota,R+33,R+34
-Ohio,R+7,R+6
-Oklahoma,R+34,R+33
-Oregon,D+9,D+7
-Pennsylvania,R+1,R+1
-Rhode Island,D+26,D+24
-South Carolina,R+17,R+16
-South Dakota,R+31,R+28
-Tennessee,R+28,R+28
-Texas,R+17,R+17
-Utah,R+31,R+30
-Vermont,D+24,D+24
-Virginia,D+0,D+7
-Washington,D+12,D+15
-West Virginia,R+30,R+33
-Wisconsin,R+1,R+3
-Wyoming,R+47,R+45
\ No newline at end of file
+state,2021
+Alabama,-29.59438
+Alaska,-14.62028
+Arizona,-7.58754
+Arkansas,-31.83641
+California,25.45492
+Colorado,6.367356
+Connecticut,12.13077
+Delaware,13.7246
+District of Columbia,68.15865
+Florida,-7.603365
+Georgia,-7.432655
+Hawaii,31.64859
+Idaho,-36.9668
+Illinois,13.44461
+Indiana,-19.98048
+Iowa,-9.679443
+Kansas,-20.68411
+Kentucky,-27.10645
+Louisiana,-20.53777
+Maine,4.045471
+Maryland,25.89621
+Massachusetts,32.63558
+Michigan,-1.645566
+Minnesota,1.930285
+Mississippi,-20.30344
+Missouri,-21.22918
+Montana,-19.98505
+Nebraska,-24.83943
+Nevada,-2.54994
+New Hampshire,0.3410335
+New Jersey,11.96593
+New Mexico,7.024009
+New York,19.95745
+North Carolina,-4.803924
+North Dakota,-37.24163
+Ohio,-12.35004
+Oklahoma,-37.20762
+Oregon,10.5522
+Pennsylvania,-2.898966
+Rhode Island,24.01542
+South Carolina,-18.63975
+South Dakota,-32.23668
+Tennessee,-29.41324
+Texas,-11.98431
+Utah,-26.3219
+Vermont,27.54904
+Virginia,4.63189
+Washington,12.43642
+West Virginia,-35.53008
+Wisconsin,-4.120129
+Wyoming,-49.73126
\ No newline at end of file