Elon Musk is threatening to defeat politicians who vote for Trump's megabill."They will lose their primary next year if it is the last thing I do on this Earth," he wrote.Musk previously said he would scale back his political spending.

Musk had quieted his harsh criticism of Trump and the legislation the week after his departure from government May 30. But he blasted the bill again on June 28 less than an hour before the Senate was prepared to hold a critical vote to begin debate.