President-elect Donald Trump delivered a likely death blow to bipartisan congressional budget negotiations on Wednesday, rejecting the measure as full of giveaways to Democrats after billionaire ally Elon Musk whipped up outrage toward the bill and cheered on Republican lawmakers who announced their opposition.

Trump's joint statement with Vice President-elect JD Vance, which stopped the bill in its tracks, punctuated a daylong torrent of social media posts by Musk attacking the legislation for what he described as excessive spending.