Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellDemocratic senator to party: 'A little message discipline wouldn't kill us' House to vote on resolution affirming peaceful transition of power Republican lawyers brush off Trump's election comments MORE (R-Ky.) on Tuesday vehemently denounced political opponents who have dubbed him “Moscow Mitch,” calling the nickname an “over-the-top” effort to “smear” him.

“It’s modern-day McCarthyism,” McConnell said during a radio interview on Salem Media Group’s “Hugh Hewitt Show” when asked about the nickname he received after blocking Democrats’ efforts to pass bipartisan election security bills. “Unbelievable for a Cold Warrior like me who spent a career standing up to the Russians to be given a moniker like that.”

ADVERTISEMENT

"You know, I can laugh about things like the 'Grim Reaper,' but calling me Moscow Mitch is over the top," the Kentucky senator added, before suggesting that Democrats would "say anything and do anything."

"This is what we’re up against with the hard left today in America," he said.

McConnell faced heavy scrutiny following his decision in July to block requests from Democratic senators to pass bills aimed at strengthening America's election infrastructure by unanimous consent.

The move came a day after former special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE publicly warned that Russia was trying to interfere in the 2020 elections as we "sit here."

Former GOP lawmaker and MSNBC host Joe Scarborough Charles (Joe) Joseph ScarboroughScarborough calls on Cuomo to walk back statement he made about Trump: 'Out of bounds' Mika Brzezinski: 'Super grossed out' by Trump speech attendees 'who put their lives at risk' Democrats tear into Trump's 'deep state' tweet: His 'lies and recklessness' have 'killed people' MORE repeatedly referred to McConnell as "Moscow Mitch" following the decision. The nickname quickly went viral among Democrats, with Speaker Nancy Pelosi Nancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE (D-Calif.) referring to the Kentucky senator as "Moscow Mitch" last month.

“We’ve sent our legislation to the Senate. Moscow Mitch says that he is the Grim Reaper," Pelosi said at an event in Illinois while decrying McConnell's moves to block House Democrats' legislation. "Imagine describing yourself as the Grim Reaper, that he’s going to bury all this legislation."

McConnell in April vowed to be the "Grim Reaper" for progressive policy proposals.

Meanwhile, he has fiercely pushed back against the criticism he received for his moves to block the election security legislation. He said in a Senate floor speech in July that his detractors were engaging in "modern-day McCarthyism."

He also argued that the bills were partisan in nature and that the Trump administration has made a concerted effort to secure the nation's elections.

"These pundits are lying, lying when they dismiss the work that has been done. They’re lying when they insist I have personally blocked actions which, in fact, I have championed and the Senate has passed. They are lying when they suggest that either party is against defending our democracy," he said during the Senate floor speech.

The bills blocked by McConnell would require the use of paper ballots and direct campaigns to report offers of assistance from foreign governments to the FBI.