Federal Reserve Chair Jerome Powell is asking an inspector general to review the cost of the central bank’s building renovations that White House officials have attacked as “ostentatious."

The move comes amid speculation that Trump, who has clashed with Powell over interest rates, might try to use the project to remove the Fed chief “for cause."

National Economic Council Director Kevin Hassett said Sunday that the president’s authority to fire Federal Reserve Chair Jerome Powell was “being looked into.”Asked in an interview on ABC News’ “This Week” whether he believes President Donald Trump has the authority to fire Powell,