US President Donald Trump vetoed a bipartisan defense policy bill on Wednesday and raised the prospect that the United States could face a government shutdown during a pandemic, stirring new turmoil in Washington as he headed to Florida for Christmas.

Angry at his fellow Republicans in Congress, Trump sought to refashion two complex pieces of legislation that passed Congress by wide, bipartisan margins after months of negotiation.

Trump followed through on a threat to veto the defense bill and demanded dramatic changes to a $2.3 trillion package that funds the federal government and provides nearly $900 billion in coronavirus aid.