Elections / 1998 · House · CA-05
CA-05 — 1998 U.S. House election
congressional district1998 US House electionCA-05 · U.S. HouseMatsuiD+45.9
How it voted
Share of the 1998 vote
| Robert T Matsui (i) ✓Democrat | 71.9% | 130,715 |
|---|---|---|
| Robert S DinsmoreRepublican | 26.0% | 47,307 |
| Douglas Arthur TumaIndependent | 2.1% | 3,746 |
D+60R+60
District boundary, filled by its own 1998 D-vs-R margin — precinct detail where available, over faint county context.
Margin history
CA-05 across every cycle on record. Each year links to its district page.
| Year | Won | Margin | Votes |
|---|---|---|---|
| 2024 | R | 368,562 | |
| 2022 | R | 283,030 | |
| 2020 | D | 356,460 | |
| 2018 | D | 261,018 | |
| 2016 | D | 292,091 | |
| 2014 | D | 171,148 | |
| 2012 | D | 272,417 | |
| 2010 | D | 172,410 | |
| 2008 | D | 221,155 | |
| 2006 | D | 149,266 | |
| 2004 | D | 193,387 | |
| 2002 | D | 131,578 | |
| 2000 | D | 214,059 | |
| 1998 | D | 181,768 | |
| 1996 | D | 202,460 | |
| 1994 | D | 182,596 | |
| 1992 | D | 230,560 | |
| 1990 | D | 156,304 | |
| 1988 | D | 174,758 | |
| 1986 | D | 163,214 | |
| 1984 | D | 193,204 | |
| 1982 | D | 178,311 | |
| 1980 | D | 197,821 | |
| 1978 | D | 158,649 | |
| 1976 | D | 167,754 |
Same ballot, 1998CA
Source. MIT Election Data + Science Lab — 1998 US House returns, party-classified by literal ballot party · district lines from the 2010-census apportionment. Real returns — nothing estimated.