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.

U.S. President Donald Trump is getting his wish that interest rates drop across the world, just not at home where a strong economy and uncertainty over his own policies have set the stage for the Federal Reserve to diverge from its central bank peers.