President Donald Trump sent the U.S. stock market on a jagged round trip Wednesday after saying he had "talked about the concept of firing" the head of the Federal Reserve. Such a move could help Wall Street get the lower interest rates it loves but would also risk a weakened Fed unable to make the unpopular moves needed to keep inflation under control.

U.S. stocks are shaky on Wednesday after President Donald Trump said he had “talked about the concept of firing” the head of the Federal Reserve. Such a move could help Wall Street get the lower interest rates that it loves but would also risk a weakened Fed unable to make the unpopular moves needed to keep inflation under control.