The company defines graphic violence as content that includes depictions of “bodily fluids including blood.”
Twitter suspended Daines' account on Monday night before restoring it on Tuesday, his office said.
“This is being fixed,” said Twitter’s owner and CEO, Elon Musk, in atweet.
Republicans have repeatedly alleged that Twitter censors conservative speech, accusations the social media company has repeatedly denied.
Twitter didn’t respond to a request for comment.
