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

The Federal Reserve’s annual conference, hosted by the Kansas City Fed in Jackson Hole, Wyoming, began Thursday evening with a dinner for the central bankers, economists and journalists who have flown in from around the world.

Both Wall Street and the White House will be paying close attention to Fed Chair Jerome Powell’s high-profile speech Friday at the Fed’s annual economic symposium in Jackson Hole, Wyoming.