Rep. Bob Good, R-Va., is planning to call for a recount in his hotly contested primary, where he trails state Sen. John McGuire by less than 400 votes.

“The people of our district are reaching out to our campaign demanding that we pursue a recount. Our donors, our volunteers, and our supporters expect it,” Good’s campaign manager and senior advisor Diana Shores said in a statement to NBC News. “This isn’t about Bob Good. This is about the people of the district.”

“Already thousands of dollars in donations have come in for our recount efforts,” Shores added. “We will pursue the recount to settle any questions about the fairness or transparency of the election process. This way, voters can confidently move forward to the general election.”

Shores’ statement comes ahead of the Virginia State Board of Elections meeting Tuesday afternoon, during which the board is expected to certify results showing McGuire leading the GOP primary the deeply Republican 5th District. Good, the chair of the hard-right House Freedom Caucus, then has 10 days to formally request a recount.

The unofficial primary results posted on the board’s website ahead of Tuesday’s meeting show McGuire besting Good by less than 1 percentage point, which is within the margin that allows a candidate to request a recount. But the margin is wide enough that Good would have to cover the cost of a recount himself, rather than the state.

McGuire had former President Donald Trump’s endorsement in the race and millions of dollars of support on the airwaves from outside groups, including some tied to former Speaker Kevin McCarthy, R-Calif. Good was one of eight Republicans who voted to oust McCarthy late last year.

Good has raised concerns, without providing evidence, about the vote count, including in Lynchburg, saying last month he would try to block certification of the primary results there.

Good is at risk of becoming the first incumbent GOP member of Congress to lose to a primary challenger this election cycle.

This article was originally published on NBCNews.com