CFO of House GOP campaign committee resigned after lawmakers objected to Electoral College results

(CNN)A top official at the National Republican Congressional Committee abruptly decided to resign earlier this month after House GOP Leader Kevin McCarthy and nearly 150 GOP lawmakers voted against certifying the Electoral College results, CNN has learned, in the latest sign of the civil war brewing inside the Republican Party as it seeks to rebuild in the post-Trump era.

Rob Jentgens, the chief financial officer at the NRCC, decided to leave his post after the vote and the deadly insurrection at the US Capitol on January 6, an official familiar with the matter told CNN.

He could not be immediately reached for comment Wednesday evening.

NRCC Communications Director Michael McAdams confirmed that Jentgens is stepping down as chief financial officer but did not say why he decided to depart. Last week, the NRCC announced their senior staff, including Katy Williams as the new CFO.

"He's still employed by the NRCC and is training the incoming CFO," McAdams said.

The resignation came after House Republicans had a strong election cycle, with all incumbents winning reelection in November and the party gaining 13 seats, increasing prospects for winning back the House majority in 2022.

The official familiar with the matter told CNN that Jentgens, a veteran member of the senior staff at the GOP campaign committee, was furious by the House vote after a day of chaos and violence on Capitol Hill. He sent in his resignation and immediately left the building, the official said.