Kansas City Federal Reserve ​President Jeffrey Schmid said on Thursday ​that the U.S. central bank's choice now is between being patient and holding interest rates steady or hiking rates to ‌tamp down ⁠inflation that ⁠has been above target for years."The big question now ​is do we stay patient?" Schmid said at an economic forum ​in Oklahoma. "Our inflation numbers have probably crept up into the three and a half percent range, ​which nobody likes. Is it temporary...or ⁠do we ‌act? Do we say, okay, now it's ​time ​to raise rates a quarter or ⁠two and see if we can't tamp this ​thing down?"Schmid's comments reflect growing concern at ​the Fed that inflation that was initially pushed up by tariffs and oil prices - factors that were on their own considered likely to fade over time - is threatening to become a ‌more persistent problem. Inflation has been above the Fed's 2% target for more than ​five years.Schmid did ​not mention ⁠the possibility the Fed might cut rates, which had been the baseline outlook for many of his colleagues at ​the start of the year.The Fed meets on June 16-17 and is expected to hold the policy rate steady in the 3.5% to 3.75% range where it has been since December.