Mr Trump's tweet had been at odds with what top members of Mr Trump's administration and House Speaker Paul Ryan said on Thursday, and with a formal statement of administration policy, which said Mr Trump was supportive of the measure.
Trump's reluctant announcement came hours after he confused both Republicans and Democrats by tweeting that he was "considering a VETO" on the massive spending bill because he claimed Democrats had "abandoned" the immigrants protected by the Obama-era Deferred Action for Childhood Arrivals program.
Lawmakers have left town for a two-week recess, some of them on overseas trips and with no plans to return to Washington. NPR White House correspondent Tamara Keith reports.
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The Fairmont Monte Carlo, for example, is one of the first establishments to organize events as part of Earth Hour . In Christchurch, New Zealand , the city saw a 13 per cent drop in electricity demand during the hour.
Many Republicans expressed their distaste for the spending bill, with many calling out the process by which it passed more than the content of it.
After aides told him that he could face backlash for allowing a government shutdown on a weekend he was scheduled to spend at his Florida resort, Trump responded "F-- that", according to The Wall Street Journal. The spending levels without any offsets are grotesque, throwing all of our children under the bus.
But action stalled in the Senate, as conservatives ran the clock in protest.
But the overall result has been unimaginable to many Republicans after campaigning on spending restraints and balanced budgets. Asked about that morning tweet, Trump insisted it was not a stunt and that he had looked "very seriously at a veto" but "the incredible gains we have been able to make for the military over-rode any of our thinking' about a veto". "There are some things that we should have in the bill".
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Many feared revenge attacks, amid reports of looting and abuse of residents in the town. The Turkish armed forces completely established control on Afrin on March 19 .
Trump said he decided against a veto for the sake of the military.
Democrats are reported to have said they would accept that, but only if a path to citizenship was created for all the 1.8m people eligible for Daca.
In Friday's news conference, Mr Trump said: "I do want the Hispanic community to know that Republicans are much more on your side than the Democrats who are using you for this goal".
President Trump has signed a $1.3 trillion spending bill, but he made a point of saying he wasn't happy about it. The Democrats fought us every single inch of the way.
But the bill does not address the fate of young immigrants brought illegally to the United States by their parents, a group who were protected by the Deferred Action for Childhood Arrivals (Daca) programme until President Trump ended it in September. The Congressional Hispanic Caucus opposed the bill.
Trump meets Saudi Crown Prince MBS, sells weapons
After his visit to Washington, Mohammed will embark on a nationwide tour, visiting New York, Boston, oil hub Houston, Los Angeles and Silicon Valley.
Senate Minority Leader Chuck Schumer, D-N.Y., said as the minority party in Congress, "We feel good". We wanted to have them in this bill.
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