Federal Reserve Chair Jerome Powell has told multiple associates and allies that there’s no chance he will bow to President Donald Trump’s calls for him to resign, vowing to withstand several more months of the president’s unprecedented,

Speaking to reporters at the start of his tour, Trump said that the administration was "taking a look at what's happening" at the Fed's $2.7bn (£1.8bn) renovation. "It looks like it's about $3.1bn," Trump said, as Powell shook his head.

The president turned a rare visit to the U.S. central bank into political theater that included hard hats and a back slap.