Congress Years
Sixteen years as the House's lone Independent — the Progressive Caucus, a famous amendment record, and votes against the Iraq War and the Patriot Act.
Winning the seat (1990)
In November 1990, Sanders defeated incumbent Republican congressman Peter Plympton Smith for Vermont’s at-large House seat — the state’s only House district. He took office on January 3, 1991, and would be re-elected seven times, serving through January 3, 2007.
The only Independent
For most of his House tenure, Sanders was the chamber’s only Independent. He caucused with the Democrats for committee assignments — the same arrangement he would later use in the Senate.
Founding the Progressive Caucus
In 1991, Sanders co-founded the Congressional Progressive Caucus, a group of the House’s most left-leaning members. The caucus grew over the following decades into one of the largest ideological caucuses in Congress.
The amendment record
Sanders developed a reputation as one of the House’s most effective amendment-writers, repeatedly attaching progressive provisions to larger bills on roll-call votes. Contemporary reporting described him as an “amendment king” — a characterization his supporters still cite and his critics dispute in significance, but the roll-call record itself is public on Congress.gov.
Defining votes
Two votes from this period became cornerstones of Sanders’s political identity:
- Patriot Act (2001). Sanders voted against the Patriot Act, citing civil-liberties concerns — his stated position.
- Iraq War authorization (2002). Sanders voted against authorizing military force in Iraq. He has invoked this vote in every subsequent campaign as evidence of his foreign-policy judgment.
He also opposed the 2008 financial-sector rescue package (TARP) as a senator — a position consistent with his House-era critiques of Wall Street.
Leaving the House
In 2006, rather than seek a ninth House term, Sanders ran for the Senate seat being vacated by Jim Jeffords — and won, beginning his Senate career on January 3, 2007.
Source notes
Service dates, caucus founding, and vote records are documented in the official Senate biography and on Congress.gov. Characterizations of the amendment record reflect contemporary press reporting cited on the sources page.
Factual baseline: September 2026.