WASHINGTON ― President Donald Trump and Federal Reserve chair Jerome Powell clashed as they toured ongoing renovations of the Fed's headquarters, with the chairman correcting the president over some of his claims about cost overruns.

Despite past threats to fire Powell over the project, Trump left the Federal Reserve building and called it a productive meeting, saying he didn't see enough to justify the chairman's termination.

"I don't think it's necessary," Trump said.

The president's rare presidential visit to the Federal Reserve building came as Trump has accused Powell of potential fraud related to the ballooning cost of the agency's $2.5 billion headquarters renovation of two historic buildings on the National Mall. Trump and several White House advisers requested the tour to inspect the work firsthand.

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