The #MAGABomber is exploding on Twitter.

The disturbing hashtag that riffs off President Trump’s signature slogan — “Make America Great Again” — has been trending after multiple explosive devices were sent to some of his staunchest critics.

Law enforcement authorities are on the hunt for the person or persons who mailed pipe bombs to Hillary Clinton, former President Barack Obama, former Vice President Joe Biden, billionaire George Soros and CNN’s Manhattan bureau.

Another was sent to former US Attorney General Eric Holder, though it wound up being “returned to sender” — the Florida office of Rep. Debbie Wasserman Schultz, officials said.

Police also found two suspicious packages addressed to Rep. Maxine Waters at a congressional mailing facility in Maryland.

And on Thursday morning, a device was found at the Manhattan restaurant of Robert De Niro.

Some social media users have been speculating that the would-be bomber is a Trump supporter.

“I promise you it will not be long until a crowd full of people cheer at a Trump rally for the #MAGABomber,” @tonyposnanski tweeted.

“@realDonaldTrump you and your hateful rhetoric are responsible for the #MAGAbomber,” @natasharothwell wrote.

And using the @TrueFactsStated handle, Claude Taylor wrote: “#MAGAbomber If the hashtag fits @realDonaldTrump you must admit.”