Benjamin L. Cardin
Photo: Government Publishing Office, Public domain
DemocratNot in office · last served 2025Last on a ballot: Nov 2018

Benjamin L. Cardin

Last held office: U.S. Senate, Maryland (2007–2025). Ran in 20 elections between 1970 and 2018, winning 20.

Last office: U.S. Senate, MarylandBorn 1943

Last margin
+34.5
Won 2018
Elections
20
1970–2018

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET

Career

Offices held, and every time Cardin was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Every race Cardin has run

Baseline: how the seat voted for president in the same or nearest year. Running ahead of it means Cardin won voters the party’s presidential nominee did not; primaries have no baseline.

YearOfficeStageResultOpponentsShareMarginRaisedBaselineAgainst baseline
2018U.S. Senate, MarylandGeneralWonTony Campbell (R), Neal Simon (I), Arvin Vohra (L)64.9%D+34.5$4.1MD+28.0+6.5
2012U.S. Senate, MarylandGeneralWonDaniel John Bongino (R), S. Rob Sobhani (I), Dean Ahmad (L)56%D+29.6$5.6MD+26.6+3.0
2006U.S. Senate, MarylandGeneralWonMichael S. Steele (R), Kevin Zeese (G)54.2%D+10.0$8.8MD+13.1−3.1
2004U.S. House, MD-3GeneralWonRobert P. Duckworth (R), Patsy Allen (G)63.4%D+29.6$941.4K—
2002U.S. House, MD-3GeneralWonScott Conwell (R)65.8%D+31.6$713.5K—
2000U.S. House, MD-3GeneralWonColin Harby (R), Joe Pomykala (L)75.7%D+51.6$740.7K—
1998U.S. House, MD-3GeneralWonColin Harby (R)77.6%D+55.2$638.6K—
1996U.S. House, MD-3GeneralWonPatrick L. McDonough (R)67.3%D+34.6$527.2K—
1994U.S. House, MD-3GeneralWonRobert Ryan Tousey (R)71%D+41.9$493.5K—
1992U.S. House, MD-3GeneralWonWilliam T. S. Bricker (R)73.5%D+47.0$591.2K—
1990U.S. House, MD-3GeneralWonHarwood Nichols (R)69.7%D+39.5$532.8K—
1988U.S. House, MD-3GeneralWonRoss Z. Pierpont (R)72.9%D+45.8$405.8K—
1986U.S. House, MD-3GeneralWonRoss Z. Pierpont (R)79.1%D+58.2$648.4K—
1982Maryland House of Delegates, District 42GeneralWonJames W. Campbell (D), Sandy Rosenberg (D), Allen G. Shoemaker (R)31.2%D+0.5——
1982Maryland House of Delegates, District 42PrimaryWonJames W. Campbell (D), Sandy Rosenberg (D), Steven V. Sklar (D)24.2%+6.2——
1978Maryland House of Delegates, District 42GeneralWonSteven V. Sklar (D), David B. Shapiro (D), David R. Blumberg (R)31.4%D+0.8——
1978Maryland House of Delegates, District 42PrimaryWonSteven V. Sklar (D), David B. Shapiro (D), Andrew McGill Whelan (D)22.6%+6.2——
1974Maryland House of Delegates, District 42GeneralWonSteven V. Sklar (D), Murray Abramson (D)33.8%D+0.3——
1974Maryland House of Delegates, District 42PrimaryWonSteven V. Sklar (D), Murray Abramson (D), Leonard Paul Siger (D)31%+1.7——
1970Maryland House of Delegates, Baltimore city 5GeneralWonAlan M. Resnick (D), Murray Abramson (D), Sol J. Friedman (D)12.1%R+0.4——

Source: 99chambers results archive

Campaign money, 2017–18

Raised
$4.1M
Spent
$3.5M
Cash
$1.3M

Source: FEC filings through Dec 31, 2018Updated Oct 8, 2026, 10:37 AM ET

Seats Cardin has held

  • U.S. Senate, Maryland · 2007–2025
  • U.S. House, MD-3 · 1987–2007
  • Maryland House of Delegates, District 42 · 1974–1986
  • Maryland House of Delegates, District BALTIMORECITY 5 · 1970–1974

Source: 99chambers results archive

Who Cardin has run against

Source: 99chambers results archive

In the polls

Included in 33 polls; Cardin’s best result was 57% (U.S. Senate in Maryland, 2012).

Cardin’s polls in the database →

Source: Polls: The New York Times and Wikipedia poll lists

How we know Cardin

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET