Mike Bloomberg’s campaign on Monday launched a new ad ripping the so-called “Bernie Bros” for using online bullying tactics against anyone who opposes Sen. Bernie Sanders.

“We need to unite to defeat Trump in November. This type of ‘energy’ is not going to get us there,” Bloomberg writes in a tweet along with the 53-second clip.

The video contains numerous tweets, including one of a Photoshopped meme of Sanders pointing a handgun with the words “I am no longer asking.”

“##Bernie or Bust now it’s #Bernie or Else,” the caption also read.

Images of threatening text and other messages then appear as ominous music pulses in the background.

“You’re making a big mistake Fred. Vote Bernie or bad things will happen,” read one.

“Love how you broke the system. We know where you live. Where you work. Where you eat. We know where you kids go to school/grandkids. We have everything on you,” continued another.

“You made a bad choice. Prepare for hell. Calls won’t stop.”

Still more threatening messages then appear as the spot continues.

“Libs who are flirting with Bloomberg. Next time they pretend to care about racism or sexual harassment or really anything other than money and power, we will remember what they were doing right now and we will remind everyone,” read one.

The spot then flashes to several media headlines criticizing “Bernie Bros,” using a term which has become a derisive nickname for some of Sanders’ supporters who have been accused of harassing and trolling opponents online.

“Bernie’s Angry Bros” read one from the New York Times, while another in the Chicago Tribune asked: “Is Bernie Sanders’ Angry Army Really What We Want?”

The ad then cuts to the Vermont senator making a plea for civility.

“It is vitally important that those of use who hold different views be able to engage in a civil discourse,” Sanders says, as the all-caps word REALLY?” remains on the screen.

Twitter reaction was mixed.

“@MikeBloomberg THANK YOU We’ve been harassed by Bernie’s base online for FIVE YEARS I’ll never vote for Bernie, they’re as bad as Trump supporters,” wrote Linda from Arizona.

But Troy Rudd took a shot at Bloomberg over his controversial support of stop-and-frisk, a policy he backed as mayor only to apologize for now that he’s running for president.

“@MikeBloomberg Mike’s just MAD because he can’t stop and frisk twitter users! #NeverBloomberg #MyBloombergStory,” he tweeted.

Bloomberg has spent hundreds of millions of his own money in a series of ads that to date have largely targeted President Trump.