Cindy McCain said Thursday that her late husband, John McCainJohn Sidney McCain‘Justice’ selected as Merriam-Webster’s 2018 word of the year Trump will likely win reelection in 2020 Kevin McLaughlin tapped to serve as NRSC executive director for 2020 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 TrumpReturn hope to the Middle East by returning to the Iran Deal Government shutdowns tend to increase government spending 'Full Frontal' gives six-bedroom house to group that works with detained immigrants 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 FlakeCorker dodges on Trump primary question The Hill's 12:30 Report – Cohen says Trump knew payments were wrong | GOP in turmoil over Trump shutdown threat | Kyl to resign from Senate at year's end Overnight Defense: Senate bucks Trump with Yemen war vote, resolution calling crown prince 'responsible' for Khashoggi killing | House briefing on Saudi Arabia fails to move needle | Inhofe casts doubt on Space Force 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.