WASHINGTON (AP) — The Democratic-controlled House returned to the Capitol Monday to vote on an override of President Donald Trump’s veto of a defense policy bill. A vote was expected Monday evening. If approved by two-thirds of the House and Senate, the override would be the first of Trump’s presidency.

Trump rejected the defense bill last week, saying it failed to limit social media companies he claims were biased against him during his failed reelection campaign. Trump also opposes language that allows for the renaming of military bases that honor Confederate leaders.

The defense bill affirms 3% pay raises for U.S. troops and authorizes more than $740 billion in military programs and construction and has broad bipartisan support in Congress.

Trump’s veto of the National Defense Authorization Act, or NDAA, provoked swift condemnation, with House Speaker Nancy Pelosi calling it “an act of staggering recklessness that harms our troops, endangers our security and undermines the will of the bipartisan Congress.”

Sen. Jim Inhofe, R-Okla., chairman of the Senate Armed Services Committee, called the bill “absolutely vital to our national security and our troops,'' adding, "Our men and women who volunteer to wear the uniform shouldn’t be denied what they need — ever.”

Trump has offered a series of rationales for rejecting the bill. He urged lawmakers to impose limits on Twitter and other social media companies he claimed are biased against him, as well as to strip out language that allows for the renaming of military bases such as Fort Benning and Fort Hood that honor Confederate leaders. Trump also claimed without evidence that the biggest winner from the defense bill would be China.

In his veto message, Trump also said the bill restricts his ability to conduct foreign policy, "particularly my efforts to bring our troops home.'' Trump was referring to provisions in the bill that impose conditions on his plan to withdraw thousands of troops from Afghanistan and Germany. The measures require the Pentagon to submit reports certifying that the proposed withdrawals would not jeopardize U.S. national security.

Both the House and Senate passed the measure by margins large enough to override a presidential veto. Trump has vetoed eight other bills, but those were all sustained because supporters did not gain the two-thirds vote needed in each chamber for the bills to become law without Trump’s signature.

Rhode Island Sen. Jack Reed, the top Democrat on the Senate Armed Services Committee, said Trump’s declaration that China gained from the defense bill was false. He also noted the shifting explanations Trump had given for the veto.

“From Confederate base names to social media liability provisions ... to imaginary and easily refutable charges about China, it’s hard to keep track of President Trump’s unprincipled, irrational excuses for vetoing this bipartisan bill,'' Reed said.

Reed called the Dec. 23 veto “Trump’s parting gift to (Russian President Vladimir) Putin and a lump of coal for our troops. Donald Trump is showing more devotion to Confederate base names than to the men and women who defend our nation.''

Rep. Adam Smith, D-Wash., chairman of the House Armed Services Committee, said Trump's veto "made it clear that he does not care about the needs of our military personnel and their families.''

The measure guides Pentagon policy and cements decisions about troop levels, new weapons systems and military readiness, personnel policy and other military goals. Many programs, including military construction, can only go into effect if the bill is approved.

Senate Majority Leader Mitch McConnell, in a rare break with Trump, had urged passage of the defense bill despite Trump’s veto threat. McConnell said it was important for Congress to continue its nearly six-decade-long streak of passing the defense policy bill.