Utah Sen. Mitt Romney and Nebraska Sen. Ben Sasse — two of the few lawmakers in their party who are willing to criticize Trump — released statements late on Thursday night, taking the President to task for his attempts to overturn his loss in Michigan.

Romney’s statement was the most direct criticism of Trump’s chaotic post-election strategy aimed at overturning President-elect Joe Biden’s win of any Republican lawmaker to date.

“Having failed to make even a plausible case of widespread fraud or conspiracy before any court of law, the President has now resorted to overt pressure on state and local officials to subvert the will of the people and overturn the election,” Romney said in a statement posted to Twitter. “It is difficult to imagine a worse, more undemocratic action by a sitting American President.”