Elections / 2018 · Senate · DE
Delaware — 2018 U.S. Senate election
Recent presidential results
state2018 Senate electionDelaware · U.S. SenateCarperD+22.1
How it voted
Share of the 2018 vote
| Thomas R Carper (i) ✓Democrat | 60.0% | 217,385 |
|---|---|---|
| Robert B ArlettRepublican | 37.8% | 137,127 |
| Demitri G TheodoropoulosGreen | 1.2% | 4,170 |
2018Senate margin
D+60R+60
3 counties, each filled by 2018 D-vs-R margin. Hover any county for its result.
County-level results (3 counties) — table
| County | Winner | Margin |
|---|---|---|
| KENT, DE | Democratic | D+6.8 |
| NEW CASTLE, DE | Democratic | D+40.8 |
| SUSSEX, DE | Republican | R+10.5 |
presidential baselinePresident 2016D+11.4Senate 2018D+22.1vs. baselineD+10.7
Delaware's 2018 Senate race ran 10.7 points more Democratic than its 2016 presidential margin.
Delaware's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | −12.2% |
| 1978 | +16.9% |
| 1982 | −11.0% |
| 1984 | +20.2% |
| 1988 | −24.1% |
| 1990 | +26.8% |
| 1994 | −13.3% |
| 1996 | +21.9% |
| 2000 | +11.8% |
| 2002 | +17.4% |
| 2006 | +41.5% |
| 2008 | +29.4% |
| 2010 | +16.6% |
| 2012 | +37.5% |
| 2014 | +13.6% |
| 2018 | +22.1% |
| 2020 | +21.5% |
| 2024 | +17.1% |
Same ballot, 2018DE
Source. MIT Election Data + Science Lab — 2018 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.