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,

The president toured the Federal Reserve’s headquarters with its chair, as the administration intensifies its campaign against his handling of the economy and the multibillion-dollar project.

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