President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE on Friday announced an afternoon news conference to discuss a $1.3 trillion omnibus spending bill, hours after he threatened to veto the measure.

"News conference at the White House concerning the Omnibus Spending Bill. 1:00 P.M." Trump tweeted.

News conference at the White House concerning the Omnibus Spending Bill. 1:00 P.M. — Donald J. Trump (@realDonaldTrump) March 23, 2018

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It was not immediately clear exactly who would be speaking at the news conference or what about the omnibus bill it would address.

But the announcement came hours after Trump suggested that he could veto the legislation over its failure to fund construction of his long-promised border wall and the fact that it does not address protections for beneficiaries of the Deferred Action for Childhood Arrivals program.