Musk, who officially left the White House last week, appeared to be pointing to estimates from budget experts who found that the Republican tax bill could add more than $2.5 trillion to the federal deficit in the coming years.

The former White House cost-cutting czar stepped up his criticism of the tax-and-spending bill just as the Senate is trying to quickly pass the measure and get it signed into law by July 4.

Elon Musk berated Republicans who voted for President Donald Trump’s signature policy bill, calling it a “massive, outrageous, pork-filled” spending bill in his most direct attack against the legislation that comes days after he formally departed the White House.