Donald Trump has assigned Transport Secretary Sean Duffy a second job as interim caretaker of NASA after the president dumped his original choice to lead the space agency. Duffy has been locked in a war of words this year with Trump’s former space buddy,

President Trump had pulled the nomination of a close associate of Elon Musk to lead the agency in May. The decision fueled a public breakdown of their alliance.

Trump’s vow to shrink the federal government appears to rely, at least in part, on top officials doing multiples jobs. These seven are doing double, triple or quadruple duty.