Collins has defended her decision, saying Trump failed to uphold his oath of office.
“His actions to interfere with the peaceful transition of power — the hallmark of our Constitution and our American democracy — were an abuse of power and constitute grounds for conviction,” Collins said on the Senate floor.
After a near double-digit re-election victory in November, Collins has played a significant role in a divided Senate.
Trump, who still has broad support among GOP voters, has targeted Republican lawmakers in both chambers who voted to impeach or convict him, reading the names of every GOP lawmaker to do so at his Conservative Political Action Conference speech in February.
“Get rid of them all,” Trump said.
National Republican Congressional Committee Chair Tom Emmer has warned Trump against trying to primary these GOP lawmakers, saying it won’t be helpful.
“He can do whatever he wants,” Emmer (R-Minn.) said in an interview. “But I would tell him that it’s probably better for us that we keep these people and we make sure that we have a majority that can be sustained going forward.”