President Donald Trump used a rare visit to the Federal Reserve on Thursday to renew his pressure on Fed Chair Jerome Powell, telling reporters that costs to renovate the Fed’s buildings were exorbitant. Powell shook his head at times during the president’s remarks.

President Donald Trump locked horns with Federal Reserve Chair Jerome Powell during a rare presidential visit to the U.S. central bank on Thursday, criticizing the cost of renovating two historical buildings at its headquarters and pressing the case for lower interest rates.

The administration has repeatedly criticized Jerome H. Powell, the chair of the central bank, for his handling of the economy and the cost of work on the institution’s headquarters.