The president’s attempts to control monetary policy became the dominant yet unspoken theme at the annual central bankers’ retreat.

As Fed Chairman Jerome Powell spoke at the annual conference in Wyoming, U.S. President Donald Trump threatened to fire Fed Governor Lisa Cook.

It’s time once again for central bankers, economists and academics to gather in Jackson Hole, Wyoming, for the Federal Reserve of Kansas City’s annual economic policy symposium. The gathering comes as the Fed finds itself an increasing focus of criticism from the White House as President Donald Trump seeks to transform the global economy and the US workforce.