Leonard L. Boswell
Last held office: U.S. House, IA-3 (1997–2013). Ran in 12 elections between 1984 and 2012, winning 11.
Last office: U.S. House, IA-3Born 1934
- Last margin
- −8.6
- Lost 2012
- Elections
- 12
- 1984–2012
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET
Career
Offices held, and every time Boswell 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 Boswell has run
Margin: how far Boswell finished ahead of (+) or behind (−) the runner-up.
Source: 99chambers results archive
Campaign money, 2011–12
- Raised
- $1.7M
- Spent
- $1.8M
- Cash
- $46.6K
Source: FEC filings through Dec 31, 2012Updated Oct 8, 2026, 10:36 AM ET
Seats Boswell has held
- U.S. House, IA-3 · 1997–2013
- Iowa State Senate, District 44 · 1992–1996
- Iowa State Senate, District 46 · 1984–1992
Source: 99chambers results archive
Who Boswell has run against
- Tom Latham (R) · 2012 election, lost
- Brad Zaun (R) · 2010 election, won
- Kim Schmett (R) · 2008 election, won
- Jeff Lamberti (R) · 2006 election, won
- Stan Thompson (R) · 2004 election, won
- Jay Marcus (R) · 2000 election, won
- Larry McKibben (R) · 1998 election, won
- Mike Mahaffey (R) · 1996 election, won
Source: 99chambers results archive
In the polls
Included in 6 polls; Boswell’s best result was 52% (Iowa's 3rd District, 2006).
Boswell’s polls in the database →How we know Boswell
One person, matched across every source we use.
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET