Cindy McCain said Thursday that her late husband, John McCainJohn Sidney McCainGOP senator says Republicans didn't control Senate when they held majority Pence met with silence after mentioning Trump in Munich speech Mark Kelly's campaign raises over M in days after launching Senate bid MORE (R-Ariz.), would have been "terribly frustrated and terribly distraught" with the tone of the most recent election.

"I saw an elective process this year unlike anything I’ve ever seen. And I think many people would say that," Cindy McCain told CBS News.

"The level of discourse, especially in my home state, that took place was abominable," she continued. "He would’ve — I know, quite frankly, would’ve said 'Enough. This is not only wrong but it’s bad for the country.' "

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McCain said she believes her husband was the "conscience of the Senate," and that his voice is especially missed given the level of political hostilities.

"His ability to at least bring people together and talk about it in whatever way he could was very important, and we’ve lost his voice," she said.

Last week's midterm elections capped off an often acrimonious campaign in numerous high-profile races.

In addition to fierce attack ads and rough rhetoric, the Georgia governor's race was marked by allegations of voter suppression, the Florida governor's race was marred by multiple racist robocalls and President TrumpDonald John TrumpRosenstein expected to leave DOJ next month: reports Allies wary of Shanahan's assurances with looming presence of Trump States file lawsuit seeking to block Trump's national emergency declaration MORE spent numerous campaign rallies demonizing Democrats and an approaching caravan of Central American migrants.

Trump and some Republicans have in recent days made unfounded allegations that voter fraud cost the GOP votes in Florida and Arizona.

The Associated Press on Monday called the Arizona race for Kyrsten Sinema, who became the first Democrat elected to a Senate seat in the state since 1988. She will fill the seat being vacated by Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeTrump suggests Heller lost reelection bid because he was 'hostile' during 2016 presidential campaign Live coverage: Trump delivers State of the Union Sasse’s jabs at Trump spark talk of primary challenger MORE (R-Ariz.).

John McCain died in August after a lengthy treatment for brain cancer. Gov. Doug Ducey (R-Ariz.) appointed Jon Kyl to replace McCain in the Senate.