President Donald Trump has overseen the White House swearing-in of the new Federal Reserve chair. Trump said Friday that he’d like Kevin Warsh’s help in stimulating the economy even as the president tried to emphasize that the nation’s central bank would remain independent. Trump has spent months criticizing Warsh’s predecessor, Jerome Powell, for being reluctant to cut interests rates. Warsh noted the Fed’s mandate “is to promote price stability and maximum employment” and he pledged that the central bank would pursue those aims with “independence and resolve.” It was unusual that the ceremony didn’t take place at the Fed’s headquarters.