He added: “I feel that I have honestly and thoughtfully represented people in the 73rd, and I look forward to continuing to do that.”

The caucus drew about 600 voters, or half of the number who voted in the district in the Democratic primaries for lieutenant governor and attorney general in 2013. But primaries feature daylong voting in people’s home precincts, compared with driving to a caucus meeting on a Monday night or Saturday to vote.

“I felt that the turnout was exceptional,” said Cheryl Zando, chairwoman of the Henrico County Democratic Committee.

Henrico Democrats are fielding only their second candidate to challenge O’Bannon in 17 years in a Republican-leaning district that voted for Democrat Hillary Clinton in the presidential election last fall.

The House election in November will be the first time since 2009 that a Democrat has been nominated to face O’Bannon, who was first elected to fill the unexpired term of then-Del. Eric Cantor in 2000 and subsequently was re-elected eight times.

But Democrats have found new energy since the election of Republican Donald Trump as president in November, when Clinton carried Virginia and won Henrico by 21 percentage points.