Democratic presidential candidate Sen. Elizabeth Warren (Mass.) on Wednesday said she couldn't name any Republican senators that she believed had character.

MSNBC anchor Chris Matthews said Republican Sens. Mitt Romney (Utah), Lamar Alexander (Tenn.), and Lisa Murkowski (Alaska) seemed to have character, asked Warren whether they could form a group to buck their party and impeach President Donald Trump.

"Who's got character? I mean is it [Sen. Richard] Burr?" Matthews asked. "Why don't they just line up and say, ‘We four Republicans have character. We're getting rid of this president.'"

Warren expressed doubt that anyone would satisfy Matthews's hopes.

"One of the hardest things really over the last three years with Donald Trump as president has been how the Republicans just almost—I say almost—without exception have been willing to just line up behind him," Warren said. "And I'm not just talking about when it's a big vote and the big pressure is on."

As an example, she argued that every last one of her Republican colleagues have voted to confirm federal judges that are sexist, racist, homophobic, and supportive of voter suppression.

"Those people pass through with every single Republican—every single Republican—voting in favor of them," Warren said, not naming any specific judges. "I just don't understand how you can do that, and I don't understand how you can say, ‘That's going to be a part of my legacy.'"

Warren, who vehemently opposed Trump's Supreme Court nominees, concluded the interview by suggesting that his judicial appointments have been "unqualified" and would have been "unthinkable" in the George W. Bush administration. However, Supreme Court Justices Brett Kavanaugh and Neil Gorsuch were both confirmed to other federal courts during the Bush administration, with the latter passing in 2006 by unanimous consent.