Trump’s blasting of the Federal Reserve and Jerome Powell came just hours after the announcement that interest rates would stand at 4.25% to 4.5%.

Outside of a U.S. President bending norms, the Fed also faces challenges in achieving its economic objectives. Inflation remains above its 2% target: Its preferred measure is at 2.4%, though core prices — considered a better gauge of where inflation is headed — rose 2.8% in November from a year ago.