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.

President Trump visited the central bank on Thursday, as the White House criticizes an extensive $2.5 billion renovation project to the buildings.

Trump and his allies say a $2.5 billion renovation of the Fed headquarters and a neighboring building reflects an institution run amok — a belief they hope to verify in an afternoon tour of the construction site.