Nearly two months after the attack, the claim that antifa was involved has been repeatedly debunked by federal authorities, but it has hardened into gospel among hard-line Trump supporters, by voters and sanctified by elected officials in the party. More than half of Trump voters in a Suffolk University/USA Today poll said that the riot was “mostly an antifa-inspired attack.” At Senate hearings last week focused on the security breakdown at the Capitol, Senator Ron Johnson, a Wisconsin Republican, repeated the falsehood that “fake Trump protesters” fomented the violence.