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Casey: 50–60% 60–70% 70–80% 80–90% >90% Hafer: 40–50% 50–60% 60–70% 80–90% Tie: 40–50% 50% No data | ||||||||||||||||||||
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The1990 Pennsylvania gubernatorial election was held on November 6, 1990. IncumbentDemocratic governorRobert P. Casey easily defeatedRepublicanBarbara Hafer. Governor Casey defeated Hafer by a margin of 35.29%, and carried 66 out of 67 Pennsylvania counties.
This was the first election since 1974 that a Democrat carriedBucks County, the first since 1906 that a Democrat wonChester County, the first since 1829 that a Democrat wonDelaware County, and the last time as of 2023 that a Democrat wonYork County.
Casey achieved the second-largest gubernatorial landslide in the state in the 20th century (and the largest victory for a Democrat), losing onlyMontgomery County by just 586 votes.[1]
Incumbent Bob Casey was challenged byPhilip J. Berg, an attorney and perennial candidate fromMontgomery County.

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Bob Casey | 636,594 | 77.54 | |
| Democratic | Philip J. Berg | 184,365 | 22.46 | |
| Total votes | 820,959 | 100.00 | ||
Endorsed Republican candidateBarbara Hafer, Auditor General and former candidate for Lt. Governor, won a surprisingly close race over Peg Luksik, an outspoken opponent of abortion.[citation needed]

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Barbara Hafer | 321,026 | 54.43 | |
| Republican | Peg Luksik | 268,773 | 45.57 | |
| Total votes | 589,799 | 100.00 | ||
Casey had maintained enormous popularity in the state,[4] was considered to have a generally positive record from his first term as governor, and was endorsed by major newspapers statewide, includingThe Philadelphia Inquirer.[5] In addition, Casey had the traditionally strong backing of urban voters and organized labor, and performed well in many heavily Republican, rural counties, as he was seen as a relatively conservative populist.
The campaign briefly turned ugly when Hafer, a pro-choice Republican who had attempted to position herself as the more liberal candidate, referred to Casey as a "redneck Irishman." Her comment, which was widely reported, helped to alienate both rural voters and those of Irish descent. Unable to gain a funding foothold or to carve out a strong public image, and trailing in the polls by forty percent on election day,[6] Hafer was subsequently defeated by Casey by a large margin.[1]
| Pennsylvania gubernatorial election, 1990[7][8] | |||||
|---|---|---|---|---|---|
| Party | Candidate | Running mate | Votes | Percentage | |
| Democratic | Bob Casey(incumbent) | Mark Singel(incumbent) | 2,065,244 | 67.63% | |
| Republican | Barbara Hafer | Harold Mowery | 987,463 | 32.34% | |
| Write-ins | Write-ins | 906 | 0.03% | ||
| Totals | 3,053,666 | 100.00% | |||
| Voter turnout (Voting age population) | 53.96% | ||||
| County[9] | Bob Casey Democratic | Barbara Hafer Republican | Various candidates Other parties | Margin | Total votes cast | ||||
|---|---|---|---|---|---|---|---|---|---|
| # | % | # | % | # | % | # | % | ||
| Adams | 13,890 | 70.95% | 5,687 | 29.05% | 15 | 0.00% | 8,203 | 41.90% | 19,577 |
| Allegheny | 281,883 | 71.95% | 109,895 | 28.05% | 0 | 0.00% | 171,988 | 43.90% | 391,778 |
| Armstrong | 14,077 | 69.45% | 6,192 | 30.55% | 0 | 0.00% | 7,885 | 38.90% | 20,269 |
| Beaver | 43,348 | 76.15% | 13,577 | 23.85% | 315 | 0.00% | 29,771 | 52.30% | 56,925 |
| Bedford | 7,709 | 61.26% | 4,876 | 38.74% | 0 | 0.00% | 2,833 | 22.52% | 12,585 |
| Berks | 47,887 | 61.81% | 29,589 | 38.19% | 203 | 0.00% | 18,298 | 23.62% | 77,476 |
| Blair | 20,713 | 68.11% | 9,698 | 31.89% | 0 | 0.00% | 11,015 | 36.22% | 30,411 |
| Bradford | 7,063 | 55.50% | 5,663 | 44.50% | 51 | 0.00% | 1,400 | 11.00% | 12,726 |
| Bucks | 81,715 | 58.58% | 57,783 | 41.42% | 0 | 0.00% | 23,932 | 17.16% | 139,498 |
| Butler | 25,327 | 66.58% | 12,715 | 33.42% | 0 | 0.00% | 12,612 | 33.16% | 38,042 |
| Cambria | 40,331 | 79.97% | 10,104 | 20.03% | 0 | 0.00% | 30,227 | 59.94% | 50,435 |
| Cameron | 1,314 | 64.57% | 721 | 35.43% | 3 | 0.00% | 593 | 29.14% | 2,035 |
| Carbon | 9,773 | 70.10% | 4,169 | 29.90% | 0 | 0.00% | 5,604 | 40.20% | 13,942 |
| Centre | 17,442 | 59.39% | 11,925 | 40.61% | 0 | 0.00% | 5,517 | 18.78% | 29,367 |
| Chester | 48,935 | 52.48% | 44,307 | 47.52% | 0 | 0.00% | 4,628 | 4.96% | 93,242 |
| Clarion | 7,235 | 65.50% | 3,811 | 34.50% | 0 | 0.00% | 3,424 | 31.00% | 11,046 |
| Clearfield | 16,464 | 73.97% | 5,793 | 26.03% | 0 | 0.00% | 10,671 | 47.94% | 22,257 |
| Clinton | 6,796 | 70.59% | 2,832 | 29.41% | 0 | 0.00% | 3,964 | 41.18% | 9,628 |
| Columbia | 9,449 | 68.05% | 4,436 | 31.95% | 15 | 0.00% | 5,013 | 36.10% | 13,885 |
| Crawford | 16,154 | 66.72% | 8,056 | 33.28% | 15 | 0.00% | 8,098 | 33.44% | 24,210 |
| Cumberland | 32,487 | 66.06% | 16,692 | 33.94% | 0 | 0.00% | 15,795 | 32.12% | 49,179 |
| Dauphin | 43,063 | 71.90% | 16,833 | 28.10% | 0 | 0.00% | 26,230 | 43.80% | 59,896 |
| Delaware | 92,865 | 54.82% | 76,531 | 45.18% | 0 | 0.00% | 16,334 | 9.64% | 169,396 |
| Elk | 8,757 | 77.28% | 2,575 | 22.72% | 0 | 0.00% | 6,182 | 54.56% | 11,332 |
| Erie | 52,168 | 71.86% | 20,424 | 28.14% | 0 | 0.00% | 31,744 | 43.72% | 72,592 |
| Fayette | 28,719 | 83.00% | 5,882 | 17.00% | 0 | 0.00% | 22,837 | 66.00% | 34,601 |
| Forest | 1,104 | 64.98% | 595 | 35.02% | 3 | 0.00% | 509 | 29.96% | 1,699 |
| Franklin | 15,126 | 64.13% | 8,461 | 35.87% | 0 | 0.00% | 6,665 | 28.26% | 23,587 |
| Fulton | 1,939 | 62.31% | 1,173 | 37.69% | 0 | 0.00% | 766 | 24.62% | 3,112 |
| Greene | 7,998 | 78.76% | 2,157 | 21.24% | 0 | 0.00% | 5,841 | 57.52% | 10,155 |
| Huntingdon | 6,656 | 65.60% | 3,490 | 34.40% | 0 | 0.00% | 3,166 | 31.20% | 10,146 |
| Indiana | 15,692 | 70.32% | 6,622 | 29.68% | 0 | 0.00% | 9,070 | 40.64% | 22,314 |
| Jefferson | 8,117 | 67.44% | 3,918 | 32.56% | 0 | 0.00% | 4,199 | 34.88% | 12,035 |
| Juniata | 4,617 | 73.82% | 1,637 | 26.18% | 0 | 0.00% | 2,980 | 47.64% | 6,254 |
| Lackawanna | 49,393 | 81.88% | 10,930 | 18.12% | 0 | 0.00% | 38,463 | 63.76% | 60,323 |
| Lancaster | 66,069 | 72.89% | 24,569 | 27.11% | 0 | 0.00% | 41,500 | 45.78% | 90,638 |
| Lawrence | 19,563 | 72.87% | 7,282 | 27.13% | 80 | 0.03% | 12,281 | 45.74% | 26,845 |
| Lebanon | 18,776 | 69.98% | 8,055 | 30.02% | 0 | 0.00% | 10,721 | 39.96% | 26,831 |
| Lehigh | 42,592 | 63.47% | 24,519 | 36.53% | 44 | 0.00% | 18,073 | 26.94% | 67,111 |
| Luzerne | 60,043 | 80.56% | 14,448 | 19.44% | 0 | 0.00% | 45,555 | 61.12% | 74,531 |
| Lycoming | 17,238 | 66.64% | 8,628 | 33.36% | 19 | 0.00% | 8,610 | 33.28% | 25,866 |
| McKean | 5,151 | 56.95% | 3,893 | 43.05% | 0 | 0.00% | 1,258 | 13.90% | 9,044 |
| Mercer | 24,078 | 69.68% | 10,479 | 30.32% | 1 | 0.00% | 13,599 | 39.66% | 34,557 |
| Mifflin | 6,472 | 69.94% | 2,781 | 30.06% | 0 | 0.00% | 3,691 | 39.88% | 9,253 |
| Monroe | 12,243 | 64.42% | 6,761 | 35.58% | 0 | 0.00% | 5,482 | 28.84% | 19,004 |
| Montgomery | 89,465 | 49.84% | 90,051 | 50.16% | 0 | 0.00% | -586 | -0.32% | 179,516 |
| Montour | 2,666 | 68.94% | 1,201 | 31.06% | 0 | 0.00% | 1,465 | 37.88% | 3,867 |
| Northampton | 38,862 | 68.04% | 18,253 | 31.96% | 0 | 0.00% | 20,609 | 36.08% | 57,115 |
| Northumberland | 17,948 | 73.75% | 6,388 | 26.25% | 0 | 0.00% | 11,560 | 47.00% | 24,336 |
| Perry | 6,205 | 65.68% | 3,242 | 34.32% | 0 | 0.00% | 2,693 | 31.36% | 9,447 |
| Philadelphia | 276,427 | 70.79% | 114,078 | 29.21% | 4 | 0.00% | 162,349 | 41.58% | 390,505 |
| Pike | 3,122 | 55.25% | 2,529 | 44.75% | 0 | 0.00% | 593 | 10.50% | 5,651 |
| Potter | 2,398 | 57.59% | 1,766 | 42.41% | 0 | 0.00% | 632 | 15.18% | 4,164 |
| Schuylkill | 29,832 | 70.32% | 12,591 | 29.68% | 0 | 0.00% | 17,241 | 40.64% | 42,423 |
| Snyder | 4,777 | 63.91% | 2,697 | 36.09% | 0 | 0.00% | 2,080 | 27.82% | 7,474 |
| Somerset | 17,610 | 71.74% | 6,937 | 28.26% | 0 | 0.00% | 10,673 | 43.48% | 24,547 |
| Sullivan | 1,207 | 59.11% | 835 | 40.89% | 0 | 0.00% | 372 | 18.22% | 2,042 |
| Susquehanna | 6,655 | 67.50% | 3,204 | 32.50% | 0 | 0.00% | 3,451 | 35.00% | 9,859 |
| Tioga | 5,737 | 57.10% | 4,310 | 42.90% | 0 | 0.00% | 1,427 | 14.20% | 10,047 |
| Union | 4,694 | 65.80% | 2,440 | 34.20% | 0 | 0.00% | 2,254 | 31.60% | 7,134 |
| Venango | 9,999 | 67.12% | 4,899 | 32.88% | 0 | 0.00% | 5,100 | 34.24% | 14,898 |
| Warren | 9,260 | 69.04% | 4,153 | 30.96% | 39 | 0.00% | 5,107 | 38.08% | 13,413 |
| Washington | 40,354 | 74.61% | 13,734 | 25.39% | 0 | 0.00% | 26,620 | 49.22% | 54,088 |
| Wayne | 5,882 | 62.67% | 3,503 | 37.33% | 9 | 0.00% | 2,379 | 25.34% | 9,385 |
| Westmoreland | 71,922 | 74.95% | 24,039 | 25.05% | 90 | 0.00% | 47,883 | 49.90% | 95,961 |
| Wyoming | 4,434 | 69.25% | 1,969 | 30.75% | 0 | 0.00% | 2,465 | 38.50% | 6,403 |
| York | 57,394 | 71.00% | 23,440 | 29.00% | 0 | 0.00% | 33,954 | 42.00% | 80,834 |
| Totals | 2,065,281 | 67.65% | 987,643 | 32.35% | 906 | 0.00% | 1,077,818 | 35.30% | 3,052,744 |