It's the latest criticism from the Trump adviser toward the sweeping policy bill aimed at advancing the president's domestic priorities.

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 called President Trump’s “big, beautiful” tax and spending package a “disgusting abomination,” stepping up his criticism just as the Senate is trying to quickly pass the measure and get it signed into law by July 4.