President Donald Trump vetoed the sweeping defence bill that both chambers of Congress recently passed by veto-proof majorities, setting up a possible veto override that would pit members of his own party against him.

Trump had previously threatened to veto the defence bill, known as the National Defense Authorization Act, because it doesn't include a repeal of Section 230, a law that shields internet companies from liability for what is posted on their websites by them or third parties.

The bill includes provisions to limit how much money Trump can move around for his border wall and another that would require the military to rename bases that were named after figures from the Confederacy.

"Unfortunately," the President wrote in his veto message to Congress, "the Act fails to include critical national security measures, includes provisions that fail to respect our veterans and our military's history, and contradicts efforts by my Administration to put America first in our national security and foreign policy actions. It is a 'gift' to China and Russia."

Trump's veto sparked an immediate rebuke from GOP Sen. Jim Inhofe, the chairman of the Senate Armed Services Committee, who said that the defence bill must become law.

"The NDAA has become law every year for 59 years straight because it's absolutely vital to our national security and our troops. This year must not be an exception. Our men and women who volunteer to wear the uniform shouldn't be denied what they need— ever," Inhofe tweeted.

The Oklahoma Republican went on to say that the defence bill "cements all the remarkable gains our military has made thanks to @realDonaldTrump's leadership," adding, "I hope all of my colleagues in Congress will join me in making sure our troops have the resources and equipment they need to defend this nation."

Democratic Sen. Mark Warner, the vice chairman of the Senate Select Committee on Intelligence, said Trump's veto "poses a serious threat to U.S. national security."

"I look forward to overriding the President's fruitless and ridiculous attempt to undermine our national security over his shifting rationale for his decision to veto, including a provision to rename bases honouring Confederate military leaders -- a provision that many in the President's own party have supported," the Virginia Democrat said in a statement.

The Senate voted overwhelmingly to approve the massive funding bill with a veto-proof majority of 84 to 13, a major rebuke to the President. Trump's position on the bill sharply divided GOP lawmakers, forcing them to choose between loyalty to the President and legislation that sets defence policy for the country. The House of Representatives also recently passed the bill with a veto-proof majority.

It's unclear if Republicans will again defy the President and vote to override his veto. Multiple House lawmakers, including the top Democrat and Republican on the House Armed Services Committee, however, previously said they will cut their holidays short for Congress to return to Washington to override a veto if necessary.

House Speaker Nancy Pelosi criticised Trump's veto as "an act of staggering recklessness" in a statement on Wednesday and said the House will take up the veto override on December 28.

The $740 billion bill also includes pay raises for America's soldiers, modernisation for equipment and provisions to require more scrutiny before troops are withdrawn from Germany or Afghanistan.

Trump singled out Section 230 in his message, calling it a "very dangerous national security risk."

He also went after the requirements for changing the names of military installations named after Confederate soldiers and slave owners.

"Over the course of United States history, these locations have taken on significance to the American story and those who have helped write it that far transcends their namesakes," Trump said. "My Administration respects the legacy of the millions of American servicemen and women who have served with honour at these military bases, and who, from these locations, have fought, bled, and died for their country. From these facilities, we have won two World Wars. I have been clear in my opposition to politically motivated attempts like this to wash away history and to dishonour the immense progress our country has fought for in realising our founding principles," the message says.

The President also said the act "directly contradict(s) my Administration's foreign policy, particularly my efforts to bring our troops home. I oppose endless wars, as does the American public."

While Trump's previous veto threats drew swift and sharp bipartisan pushback from lawmakers who have argued that he is using leverage over the troops to settle personal scores, he has received vocal support from some allies.

Sen. Lindsey Graham, a South Carolina Republican and chairman of the Senate Judiciary Committee, had backed the President on his push to remove Section 230.

"I support President @realDonaldTrump's insistence Section 230 repeal be part of the defense authorization bill," he wrote in a three-tweet thread. "Big Tech is the only industry in America that cannot be sued for their business practices and are not meaningfully regulated. This must come to an end."

The conservative House Freedom Caucus announced ahead of the House vote that its members will side with Trump in his opposition to the legislation and was pressuring other GOP members to side with Trump as well.

text by Clare Foran and Nikki Carvajal, CNN