CA-15 — 2020 U.S. House election
Recent presidential results, current district lines
Akashiccongressional district2020 US House electionCA-15 · U.S. HouseSwalwellD+41.8
How it voted
Share of the 2020 vote
| Eric Swalwell (i) ✓Democrat | 70.9% | 242,991 |
|---|---|---|
| Alison HaydenRepublican | 29.1% | 99,710 |
D+60R+60
District boundary, filled by its own 2020 D-vs-R margin — precinct detail where available, over faint county context.
The boundary drawn is the current CA-15 (cd:120, the 2026 map); the 2020 election ran under that decade's own lines. The result shown is the certified 2020 contest.
Margin history
CA-15 across every cycle on record. Each year links to its district page.
| Year | Won | Margin | Votes |
|---|---|---|---|
| 2024 | D | 289,544 | |
| 2022 | D | 194,874 | |
| 2020 | D | 342,701 | |
| 2018 | D | 243,929 | |
| 2016 | D | 269,197 | |
| 2014 | D | 142,906 | |
| 2012 | D | 231,034 | |
| 2010 | D | 186,615 | |
| 2008 | D | 238,589 | |
| 2006 | D | 159,718 | |
| 2004 | D | 214,338 | |
| 2002 | D | 133,022 | |
| 2000 | D | 236,822 | |
| 1998 | R | 184,778 | |
| 1996 | R | 226,868 | |
| 1994 | D | 200,204 | |
| 1992 | D | 265,370 | |
| 1990 | D | 146,781 | |
| 1988 | D | 170,193 | |
| 1986 | D | 131,775 | |
| 1984 | D | 167,406 | |
| 1982 | D | 135,043 | |
| 1980 | D | 150,491 | |
| 1978 | D | 125,126 | |
| 1976 | D | 128,435 |
Same ballot, 2020CA
Source. MIT Election Data + Science Lab — 2020 US House returns, party-classified by literal ballot party · results as certified for the 2020 contest; the boundary drawn and the presidential strip use the current district map (cd:120, the 2026 lines) — the election itself ran under earlier lines. Real returns — nothing estimated.