Judge Judy, who endorsed former New York City mayor Michael Bloomberg last month, has some advice for supporters of Sen. Bernie Sanders: Step off.

“I’ll fight them to the death,” said the judge, whose full name is Judy Sheindlin.

“America doesn’t need a revolution. It’s the most perfect country in the world, and those people that are trying to change it and revolutionize it don’t have a chance, because I’ll fight them to the death,” she said.

As for Bloomberg, the judge said he “understands how to tweak the things that are wrong with America,” Judge Judy told KOKH FOX 25.

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“America’s in trouble. Everybody’s angry, polarized, and it will continue to be polarized unless you have a president who has no agenda other than to do the right thing for the people that he represents,” the judge said. “Mike Bloomberg is not an ideologue. He’s a doer. He sees a problem, he understands that if you have … a solid education as a youngster and as you grow you’ll have the tools to make it.”

“Mike and I are the products of an American dream,” she said.

The mayor appreciated the vote of confidence. “Don’t get on the wrong side of the judge, that’s the message,” Bloomberg said.

Sanders has been on fire in the first three states to vote on the 2020 Democratic presidential nominee, winning them all. But many Democrats fear that while Sanders could win the nomination, he’d lose badly in November against President Trump.

To the judge, Bloomberg is the most qualified. Sheindlin has cut a 30-second ad for Bloomberg, titled “Judge Him,” which will “run across digital channels and in relevant broadcast programming across 26 states,” according to a statement from Bloomberg’s campaign.

“I’d like to say you can judge someone’s character by what they’ve done. Mike Bloomberg has done amazing things and will be a truly great president,” Sheindlin said.

“No one comes close to Mike’s executive achievement, government experience, and impactful philanthropy. His steady leadership will unite our country and bring us through these very challenging times,” she said.

Last month the judge dismissed former vice president Joe Biden and Massachusetts Sen. Elizabeth Warren.

“You have somebody who is a No. 2 guy and a senator – you have two senators,” she told People magazine.”

And she didn’t have much nice to say about former South Bend, Ind., mayor Pete Buttigieg.

“You have a very lovely young man who ran a very small town for a very short time. If you were the governor of Indiana, you would still be governing two million people less than New York City,” Sheindlin said.