Twitter admitted it erred in taking "enforcement action" on the account of Rep. Devin Nunes, R-Calif.
The mistake "has since been reversed," a Twitter spokesperson told Fox News.
Nunes this week was locked out of his account for about 10 minutes, a source told Fox News.
Twitter's automated systems took action when Nunes' account failed an anti-spam challenge.
"Our automated systems took enforcement action on the account in error and it has since been reversed," a spokesperson said. "The enforcement action was taken as a result of the account's failure to complete an anti-spam challenge that we regularly deploy across the service."
Twitter said the error only affected Nunes' account, which has been used infrequently in recent months.
In November on his personal account, Nunes tweeted:
"Eerily quiet here in the Twitter Sewer. Thought for a second I went to MySpace by accident. Many people I follow have been vaporized by left wing tech tyrants. Hopefully they will reappear on Parler and Rumble."
In 2019, Nunes filed a lawsuit against Twitter accusing it of "shadow-banning conservatives." He sought $250 million in compensatory damages and $350,000 in punitive damages against the company and a handful of its users.
A Virginia judge last year ruled that Nunes’ case against Twitter had no merit. The lawsuit had alleged defamation, conspiracy, and negligence.
The judge said Section 230 of the Communications Decency Act prevented social media platforms from being held liable for posts made by third-party users.
With social platforms such as Twitter and Facebook moderating content, Republicans have questioned whether the social media giants should still exempt under Section 230.