Democratic presidential hopeful Bernie Sanders Bernie SandersKenosha will be a good bellwether in 2020 Biden's fiscal program: What is the likely market impact? McConnell accuses Democrats of sowing division by 'downplaying progress' on election security MORE had nothing but criticism for the GOP during an interview Wednesday, calling his Republican counterparts running for the White House an “international embarrassment” aided by the media.

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“What Republican candidates have now stooped to is to starting attacking each other’s wives,” Sanders said on MSNBC’s “The Rachel Maddow Show,” according to a transcript. “I mean this is an international embarrassment. I think people around the rest of the world think we are pretty crazy.”

Sanders was referring to a feud between GOP front-runner Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE and his rival Ted Cruz Rafael (Ted) Edward CruzSenate Republicans face tough decision on replacing Ginsburg Cruz: Trump should nominate a Supreme Court justice next week Renewed focus on Trump's Supreme Court list after Ginsburg's death MORE last week, in which the two candidates resorted to personal attacks through a series of tweets and cable news interviews.

“The Republican Party now is a joke, maintained by a media which really does not force them to discuss their issues,” Sanders said, slamming media outlets for “quoting every absurd remark of Donald Trump.”

“Every stupid remark will be broadcast, you know, for the next five days,” Sanders added. “But because media is what media is today, any stupid, absurd remark made by Donald Trump becomes the story of the week. Maybe, just maybe, we might want to have a serious discussion about the serious issues facing America.”

He went on to say the race between he and Democratic front-runner Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE is much cleaner and productive.

“While we have very different points of view, we are trying to discuss the real issues facing the American people, and I think most objective Americans appreciate that a lot more than the kind of circus that is taking place on the Republican side,” he said.

The full interview is set to air at 10 p.m. Wednesday on MSNBC.