Sen. John McCain John Sidney McCainThe Memo: Trump's strengths complicate election picture Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' Cindy McCain: Trump allegedly calling war dead 'losers' was 'pretty much' last straw before Biden endorsement MORE (R-Ariz.) is favored more by Democratic voters in Arizona than he is with Republican voters in his home state, according to a new CBS News poll.

Of those surveyed, 62 percent of Democrats said they had favorable views of McCain, while 17 percent said they held unfavorable views.

This was a stark contrast to Republican voters, who only 20 percent said they had favorable views of the longtime senator, while 68 percent said they viewed him unfavorably.

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Among independents, 33 percent said they had a favorable view of McCain and 51 percent said they had unfavorable views.

The Arizona senator has proven to be one of President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's most outspoken critics in the Senate, frequently blasting the president's rhetoric.

Trump mocked McCain on Saturday during a rally, taking aim at his famous thumbs-down vote last year on the Republican plan to repeal ObamaCare.

"Nobody talked to him. Nobody needed to, and then he walked in: thumbs-down. It’s alright because we’ve essentially gutted it anyway," Trump said referring to the health care law.

McCain has taken on a reduced role in the Senate after he was diagnosed with brain cancer in July 2017. He has since undergone treatment and surgery.

The CBS News poll was conducted from June 21-22 among 2,063 U.S. adults. The poll's margin of error is plus or minus 3.7 percentage points.