House Speaker Nancy Pelosi will face a spirited challenge from activist and attorney Shahid Buttar in the November general election.

Buttar represents a unique, if unlikely challenge to Pelosi, the most powerful elected Democrat in the country and 33-year incumbent for San Francisco’s congressional seat. On Tuesday, Pelosi took 72.5 percent of the vote in California’s 12th Congressional District. Under the state’s unique primary system — where the top-two vote-getters in the primary make it to the general election, even if they belong to the same party — Buttar’s 12.7 percent was enough to get him on the November ballot.