Senate Majority Whip John Cornyn on Thursday rejected Hillary Clinton's claim that civility can only return to politics when Democrats take over the House or Senate again, and said in a Senate floor speech that Clinton revealed a "disturbing" mindset when she spoke.

Clinton said over the weekend that Democrats "cannot be civil with a political party that wants to destroy what you stand for."

"In other words, her commitment to civility in our political discourse is contingent upon political outcomes," Cornyn said in a floor speech.

"And do you notice the verb she used? She used the word 'destroy,' which I think is telling," he said. "It's not that people may disagree with her or her party, it's that people who disagree with her want to destroy what you stand for and what you care about."

"This mindset I think is very disturbing, and should be a concern to all of us who want to restore some civility and decorum, and bipartisan cooperation," Cornyn added.

[More: Kellyanne Conway rips Hillary Clinton for her 'dangerous' civility lecture]

Cornyn and other Republicans have said Democrats crossed a line when they accused Supreme Court nominee Brett Kavanaugh of sexual assault, and encouraged their allies to harass Republicans in a bid to get them to drop the nominee.

"We learned it is our Democratic colleagues, unfortunately, who have associated themselves with special interest groups that are willing to go to just about any length to achieve their desired ends," Cornyn said.

"I don't think the voters will reward a party that is spitting out this sort of venom about what our politics should be about, and sowing division, alluding to violence, rejecting civility," he said. "Is that what supposedly passes for leadership? Should the voters reward that in this midterm election?"

"I think our forefathers would be shocked," Cornyn said.