Politicians across the country are facing hostile constituents at town halls these days, but the accusations of “traitor” and “fascist” lobbed by a room full of white liberals at a Black, 22-year-old Democratic New Hampshire state representative, Jonah Wheeler, on Tuesday night was on another level.

The town hall was hosted by the Peterborough chapter of the League of Women Voters. Constituents in this overwhelmingly Democratic town — Vice President Harris won 69 percent of the vote there in November — were not railing against Elon Musk or the party’s failure to combat the Trump agenda.

Many in the audience were, instead, angry with Mr. Wheeler for the sin of breaking with his party on an issue that has become one of the Democratic party’s biggest electoral liabilities: transgender issues.

“There’s so much fervor on the left that if you bring up one counter opinion to the orthodoxy you’re shouted down, screamed down,” Mr. Wheeler told The New York Sun at the meeting. “This isn’t just a Peterborough problem. This is indicative of the Democratic Party at large.”