Shortly before Trump made baseless claims at a news conference about massive voter fraud in Pennsylvania, Sen. Pat Toomey, R-Pa., said in a statement that once the state’s final election count is “reached and certified, all parties involved must accept the outcome of the election regardless of whether they won or lost.”

Toomey also called for patience as the votes are counted, despite Trump’s having tweeting earlier in the day that officials should “stop the count!” Speaking about the mail-in vote count, Trump also told reporters, “There has been a lot of shenanigans, and we can’t stand for that in our country.”

The harshest pushback came from retiring Rep. Will Hurd of Texas.

“A sitting president undermining our political process & questioning the legality of the voices of countless Americans without evidence is not only dangerous & wrong, it undermines the very foundation this nation was built upon,” he said in a tweet. “Every American should have his or her vote counted.”