In the presidential election, Bucks County helped Joe Biden get the votes needed to win Pennsylvania. More votes were cast for Biden in 2020 than for Hillary Clinton in 2016.
| Democratic votes | Republican votes | Win pct. | |
|---|---|---|---|
| 2016 | 167,060 | 164,361 | |
| 2020 | 204,712 | 187,359 |
