President Ronald Reagan created the efficiency-minded Grace Commission in 1982, promising that it would “drain the swamp.” President Bill Clinton established the National Partnership for Reinventing Government in 1993 with the goal of making the government “work better, cost less, and get results Americans care about,” keeping it active until 1998.

President-elect Donald Trump made good on one of his campaign promises Tuesday night when he officially appointed billionaire Elon Musk to lead the new “Department of Government Efficiency,” along with entrepreneur Vivek Ramaswamy.

Musk has been so aggressive in pushing his views about Trump’s second term that he’s stepping on the toes of Trump’s transition team and may be overstaying his welcome at Mar-a-Lago, Trump’s home in Palm Beach, Florida, according to two people familiar with the transition who have spent time at the resort over the past week.