The Trump administration is asking the Supreme Court Thursday to let the president fire a member of the Federal Trade Commission, the latest in a string of emergency petitions over the president’s removal power.

The fight over the president’s power to fire could prompt the court to consider overturning a 90-year-old Supreme Court decision known as Humphrey’s Executor. In that case from 1935, the court unanimously held that presidents cannot fire independent board members without cause.