U.S. Federal Reserve Governor Christopher Waller on Wednesday said higher market interest rates may help the Fed slow inflation, and let the central bank "watch and see" if its own policy rate needs to rise again or not. Waller, who has been among the most vocal advocates for higher interest rates to fight inflation, said price data seemed to now be moving back towards the Fed's 2% target, with financial markets adding further credit tightening of their own. "We're in this position where we kind of watch and see what happens on rates," said Waller, who was interviewed by former Republican House Speaker and Wisconsin Congressman Paul Ryan at a high-profile GOP event in Utah.