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United States · Election results history · 2020 Senate · Kansas
Election 2020 Results

Each election opens in its own mode: the forecast before the votes are counted, the live count while races are still too close to call, and the results once every race is decided.

2020 US Senate election in Kansas

Roger Marshall (Republican) beat Barbara Bollier (Democrat) in Kansas in 2020, 53.2% to 41.8%, a margin of 11.4 points and 156,432 votes.

The Republican hold continued from 2014, when Pat Roberts won.

Republicans led in 100 of the 105 counties and Democrats in 5. The largest, Johnson, cast 347,336 votes and went to the Democrat by 7.8 points. The closest was Greeley, where 406 votes separated the two parties.

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Early projection, based on early and incomplete polling: the likely matchups, each weighted by the betting markets' odds of both nominations, not a result. Each county is its 2024 presidential margin moved by its state's projected swing; set a national vote and every state, district and county moves by the same amount from our projection. Colours run in 100 steps from a safe Republican to a safe Democratic margin. Boundaries: US Census Bureau.

Senate

CandidatePartyVotesShare
Roger Marshall won Republican 727,962 53.2%
Barbara Bollier Democratic 571,530 41.8%
All other candidates 68,719 5.0%
Total1,368,211

Every county

CountyDemocratRepublicanOthersTotalMargin
Johnson 179,231 51.6% 152,068 43.8% 16,037 347,336 D+7.8
Sedgwick 96,205 43.3% 115,476 51.9% 10,738 222,419 R+8.7
Shawnee 43,185 50.4% 37,861 44.2% 4,604 85,650 D+6.2
Douglas 40,262 67.7% 16,594 27.9% 2,623 59,479 D+39.8
Wyandotte 35,685 63.3% 16,811 29.8% 3,841 56,337 D+33.5
Leavenworth 13,894 38.2% 20,067 55.2% 2,396 36,357 R+17.0
Butler 9,554 29.4% 21,312 65.7% 1,584 32,450 R+36.2
Reno 9,251 33.1% 17,362 62.2% 1,307 27,920 R+29.1
Riley 12,767 50.6% 11,323 44.9% 1,149 25,239 D+5.7
Saline 8,671 35.4% 14,666 60.0% 1,125 24,462 R+24.5
Miami 5,428 30.3% 11,629 65.0% 828 17,885 R+34.7
Harvey 6,942 40.2% 9,542 55.3% 780 17,264 R+15.1
Crawford 6,494 39.2% 9,092 54.9% 978 16,564 R+15.7
McPherson 4,370 30.4% 9,406 65.4% 609 14,385 R+35.0
Cowley 4,568 32.0% 8,886 62.2% 821 14,275 R+30.2
Lyon 6,171 44.3% 6,951 49.9% 806 13,928 R+5.6
Ellis 3,904 28.3% 9,298 67.5% 569 13,771 R+39.2
Montgomery 3,234 24.3% 9,456 70.9% 640 13,330 R+46.7
Pottawatomie 3,425 26.2% 9,010 68.9% 637 13,072 R+42.7
Franklin 3,705 29.9% 7,814 63.1% 868 12,387 R+33.2
Finney 4,242 36.3% 6,808 58.2% 646 11,696 R+21.9
Barton 2,477 22.4% 8,151 73.6% 451 11,079 R+51.2
Sumner 2,835 26.0% 7,458 68.3% 619 10,912 R+42.4
Jefferson 3,349 34.2% 5,902 60.3% 536 9,787 R+26.1
Geary 3,962 41.6% 4,878 51.2% 682 9,522 R+9.6
Dickinson 2,235 24.1% 6,553 70.6% 492 9,280 R+46.5
Cherokee 2,368 26.2% 6,216 68.6% 471 9,055 R+42.5
Ford 2,950 33.4% 5,415 61.3% 472 8,837 R+27.9
Labette 2,806 33.0% 5,282 62.0% 427 8,515 R+29.1
Osage 2,292 28.7% 5,177 64.9% 508 7,977 R+36.2
Atchison 2,434 32.8% 4,454 60.0% 531 7,419 R+27.2
Neosho 1,938 28.4% 4,566 67.0% 315 6,819 R+38.5
Bourbon 1,694 25.5% 4,619 69.6% 319 6,632 R+44.1
Jackson 2,029 30.9% 4,130 62.9% 411 6,570 R+32.0
Marion 1,597 26.1% 4,258 69.6% 260 6,115 R+43.5
Allen 1,701 29.0% 3,856 65.7% 314 5,871 R+36.7
Nemaha 1,060 18.7% 4,391 77.4% 220 5,671 R+58.7
Seward 1,824 35.1% 3,115 59.9% 260 5,199 R+24.8
Marshall 1,325 26.3% 3,422 67.9% 294 5,041 R+41.6
Linn 996 19.9% 3,682 73.4% 335 5,013 R+53.6
Coffey 1,027 22.7% 3,228 71.2% 276 4,531 R+48.6
Brown 1,193 26.9% 2,975 67.1% 267 4,435 R+40.2
Rice 1,047 24.4% 3,039 70.7% 213 4,299 R+46.3
Cloud 942 22.4% 3,018 71.6% 254 4,214 R+49.3
Clay 932 22.4% 2,991 71.9% 235 4,158 R+49.5
Pratt 1,012 24.5% 2,925 70.9% 187 4,124 R+46.4
Wilson 853 21.6% 2,910 73.6% 190 3,953 R+52.0
Kingman 846 21.5% 2,902 73.6% 195 3,943 R+52.1
Wabaunsee 1,034 26.6% 2,670 68.7% 181 3,885 R+42.1
Thomas 688 18.1% 2,965 78.0% 146 3,799 R+59.9
Anderson 842 22.5% 2,638 70.4% 268 3,748 R+47.9
Doniphan 672 18.5% 2,761 75.8% 209 3,642 R+57.4
Russell 666 19.4% 2,595 75.7% 167 3,428 R+56.3
Ottawa 566 17.7% 2,442 76.6% 182 3,190 R+58.8
Mitchell 587 19.0% 2,392 77.4% 111 3,090 R+58.4
Greenwood 654 21.3% 2,217 72.3% 194 3,065 R+51.0
Morris 839 29.0% 1,924 66.6% 127 2,890 R+37.5
Washington 507 17.6% 2,260 78.5% 111 2,878 R+60.9
Ellsworth 715 25.1% 1,992 69.9% 142 2,849 R+44.8
Phillips 370 13.4% 2,261 81.7% 136 2,767 R+68.3
Rooks 382 14.0% 2,190 80.0% 166 2,738 R+66.0
Pawnee 683 25.0% 1,932 70.8% 115 2,730 R+45.8
Sherman 418 15.5% 2,132 78.8% 155 2,705 R+63.4
Harper 546 20.7% 1,972 74.6% 125 2,643 R+54.0
Republic 433 16.4% 2,092 79.4% 111 2,636 R+62.9
Grant 531 21.5% 1,803 72.8% 141 2,475 R+51.4
Norton 379 15.8% 1,910 79.6% 110 2,399 R+63.8
Scott 325 13.8% 1,918 81.7% 105 2,348 R+67.8
Barber 328 14.1% 1,879 80.9% 115 2,322 R+66.8
Gray 355 15.6% 1,811 79.4% 114 2,280 R+63.9
Smith 366 17.2% 1,668 78.6% 88 2,122 R+61.4
Stafford 380 18.8% 1,561 77.0% 85 2,026 R+58.3
Stevens 270 13.5% 1,641 81.8% 96 2,007 R+68.3
Osborne 333 17.2% 1,503 77.7% 99 1,935 R+60.5
Meade 290 16.0% 1,434 79.4% 83 1,807 R+63.3
Rush 316 18.9% 1,275 76.4% 77 1,668 R+57.5
Chautauqua 225 13.9% 1,345 82.9% 53 1,623 R+69.0
Trego 296 18.3% 1,240 76.6% 82 1,618 R+58.3
Jewell 239 14.8% 1,310 81.2% 65 1,614 R+66.4
Lincoln 297 18.9% 1,208 76.9% 66 1,571 R+58.0
Woodson 352 22.9% 1,093 71.0% 94 1,539 R+48.1
Ness 171 11.4% 1,273 84.8% 58 1,502 R+73.4
Rawlins 227 15.2% 1,204 80.5% 64 1,495 R+65.4
Decatur 232 15.6% 1,180 79.2% 78 1,490 R+63.6
Chase 390 26.2% 1,025 68.9% 73 1,488 R+42.7
Cheyenne 241 16.4% 1,168 79.2% 65 1,474 R+62.9
Gove 210 14.4% 1,197 82.2% 50 1,457 R+67.7
Logan 218 15.0% 1,163 80.3% 68 1,449 R+65.2
Sheridan 173 12.1% 1,222 85.2% 40 1,435 R+73.1
Kearny 278 19.4% 1,104 77.0% 51 1,433 R+57.6
Edwards 267 18.8% 1,094 76.8% 63 1,424 R+58.1
Haskell 285 20.3% 1,051 74.7% 71 1,407 R+54.4
Elk 230 17.1% 1,041 77.3% 75 1,346 R+60.3
Graham 256 19.3% 1,012 76.3% 58 1,326 R+57.0
Morton 167 14.1% 964 81.4% 53 1,184 R+67.3
Kiowa 157 13.5% 938 80.6% 69 1,164 R+67.1
Clark 164 15.5% 831 78.8% 60 1,055 R+63.2
Hodgeman 179 17.2% 826 79.4% 35 1,040 R+62.2
Wichita 154 16.0% 774 80.5% 33 961 R+64.5
Comanche 153 16.6% 716 77.9% 50 919 R+61.3
Lane 135 15.2% 706 79.4% 48 889 R+64.2
Hamilton 156 18.3% 655 76.9% 41 852 R+58.6
Wallace 54 6.6% 738 90.2% 26 818 R+83.6
Stanton 140 18.3% 598 78.4% 25 763 R+60.0
Greeley 97 15.5% 503 80.4% 26 626 R+64.9

Margin: the Democrat's share of all votes minus the Republican's. Sources and how the results were checked.

Kansas Senate elections we hold

YearWinnerMargin
2022 Jerry Moran (R) R+23.0
2020 Roger Marshall (R) R+11.4
2016 Jerry Moran (R) R+29.9
2014 Pat Roberts (R) R+53.1
2010 Jerry Moran (R) R+43.7
2008 Pat Roberts (R) R+23.6
2004 Sam Brownback (R) R+41.7
2002 Pat Roberts (R) R+82.5
1998 Sam Brownback (R) R+33.7
1996 Pat Roberts (R) R+27.6
1992 Bob Dole (R) R+31.7
1990 Nancy Landon Kassebaum (R) R+47.2
1986 Bob Dole (R) R+40.1
1984 Nancy Landon Kassebaum (R) R+54.8
1980 Bob Dole (R) R+27.5
1978 Nancy Landon Kassebaum (R) R+11.5
1974 Bob Dole (R) R+1.7
1972 James B. Pearson (R) R+48.4
1968 Bob Dole (R) R+21.4
1966 James Pearson (R) R+7.0
1962 Frank Carlson (R) R+26.5
1960 Andrew Schoeppel (R) R+10.9
1956 Frank Carlson (R) R+17.4
1954 Andrew Schoeppel (R) R+14.5
1950 Frank Carlson (R) R+10.4
1948 Andrew Schoeppel (R) R+12.2
1944 Clyde M. Reed (R) R+17.2
1942 Arthur Capper (R) R+16.8
1938 Clyde M. Reed (R) R+12.4
1936 Arthur Capper (R) R+3.9
1932 George McGill (D) D+3.6
1930 Arthur Capper (R) R+22.2
1926 Charles Curtis (R) R+28.8
1924 Arthur Capper (R) R+44.9
1920 Charles Curtis (R) R+30.7
1918 Arthur Capper (R) R+30.0
1914 Charles Curtis (R) R+0.8