The US House of Representatives voted to censure Democrat Adam Schiff for saying that Donald Trump colluded with Russia to win the 2016 election.
With 213 Republicans voting in favor and 209 Democrats voting against it, the Republican-controlled chamber approved the measure on a party-line vote.
A formal public reprimand that does not amount to an expulsion is known as a "censure" and is a rare action.
Mr. Schiff declared that he would consider the vote against him a "badge of honor.".
He jokingly thanked Republicans for their "enmity" before the vote and vowed to "not yield. Not a millimeter.
Following the vote, several Democrats surrounded him with cheers, pats on the back, and cries of "shame!" and "Adam" as he made his way to the well of the House floor to receive his formal rebuke.
Republican House Speaker Kevin McCarthy struggled to read the censure resolution in the face of Democratic jeers, with one lawmaker yelling "censure all of us.".
The California congressman is only the third to receive a censure in the past 20 years and the 25th House member to receive one overall.
Mr. Schiff oversaw the panel's investigation into Mr. Trump's finances and alleged ties to Russia while serving as the top-ranking Democrat on the House intelligence committee during the Trump administration.
In 2019, when Mr. Schiff served as lead prosecutor, the investigation ultimately had an impact on the former president's first impeachment trial. The US Senate found Mr. Trump not guilty.
The newly elected Republican majority in the House removed Mr. Schiff from the intelligence committee in January.
To launch "an all-out political campaign against a sitting president," according to Florida Republican Anna Paulina Luna, who spearheaded the effort to censure Mr. Schiff this month.
Her second attempt to punish her Democratic rival was Wednesday's resolution. Last week, a similar censure that called for Mr. Schiff to pay a $16 million (£12 point 5 million) fine unless he resigned from Congress was defeated by Republican lawmakers.
With regard to Mr. Schiff's prior statements and deeds in relation to the Trump investigations, the House ethics committee is mandated to look into him by the measure passed this week.
The censure has little immediate impact, especially since Mr. Schiff is already considering running for the US Senate, but it is indicative of an intensifying game of tit-for-tat in the troubled congressional chamber.
After posting an animated video online depicting him slashing Democrat Alexandria Ocasio-Cortez with a sword, Arizona Republican Paul Gosar was the last lawmaker to be censured in 2021. Republicans at the time cautioned that the Democrats had established "a new standard."
