In public statements again this week, former president Donald Trump has repeated his claims that the 2020 election was a fraud and was stolen. His message: I am still the rightful president, and President Biden is illegitimate. Trump repeats these words now with full knowledge that exactly this type of language provoked violence on Jan. 6. And, as the Justice Department and multiple federal judges have suggested, there is good reason to believe that Trump’s language can provoke violence again. Trump is seeking to unravel critical elements of our constitutional structure that make democracy work — confidence in the result of elections and the rule of law. No other American president has ever done this.