Jimmy Fallon mocked President TrumpDonald John TrumpSessions accepts 'Fox News Sunday' invitation to debate, Tuberville declines Priest among those police cleared from St. John's Church patio for Trump visit Trump criticizes CNN on split-screen audio of Rose Garden address, protesters clashing with police MORE's decision to end the Deferred Action for Childhood Arrivals (DACA) program, saying the six-month delay in stopping the program was only done because "by then, it will be President Pence's problem."

"There's a lot of news to get to, you guys," the NBC "Tonight Show" host said to start his opening monologue Tuesday, joking, "On one hand, we have the U.S. Open, and on the other, we have Trump saying it's closed.

"It was announced today that President Trump is ending the DACA program and may deport immigrants who came to the U.S. decades ago," Fallon continued later. "Many people are outraged, while Melania was like, well, rules are rules!

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"So, see ya. Take care. Sorry. But first, Trump wants the end the DACA program, but only after a six-month delay. You know, because by then, it will be President Pence's problem."

Trump was slammed by all the late-night hosts on Tuesday night following his administration's announcement that it would end DACA, which began through executive action under the Obama administration in 2012.

NBC "Late Night" host Seth Meyers, who banned Trump from his program while he was a candidate, said in his opening monologue Tuesday that "Trump once again proved himself to be a liar after repeatedly assuring Dreamers that he would take care of them and treat them with heart."

ABC's Jimmy Kimmel also lambasted the decision, saying that "ultimately Donald Trump believes that if these kids want to be American, they have to do it the right way: by marrying Donald Trump. And it’s as simple as that."

CBS's Stephen Colbert, who has been one of the president's harshest critics since he announced his candidacy, took aim at Trump for not making the decision himself.

"Even though his decision is unpopular, Trump bravely stepped up, then cringed back and had somebody else announce it," Colbert said. "That someone was Attorney General and turnip-that-learned-to-hate Jeff SessionsJefferson (Jeff) Beauregard SessionsSessions accepts 'Fox News Sunday' invitation to debate, Tuberville declines What you need to know about FBI official Dana Boente's retirement Rosenstein steps back into GOP crosshairs MORE."

Sessions announced Tuesday that the Trump administration over the next six months will phase out the DACA program, which grants immigrants brought to the country illegally as minors a reprieve from deportation.