It shows how some of Musk's wealth has come and was still expected to come from taxpayers before the plans were put on hold.

The case is a reminder of how much of Musk’s wealth comes from taxpayers. His companies have government contracts worth hundreds of millions of dollars a year.

The U.S. government has not awarded Tesla a contract to produce “armored” electric cars, a State Department spokesperson said Thursday, clarifying a budget document that appeared to detail the agency’s plan to spend $400 million on vehicles from Elon Musk’s automotive giant.