In a pair of tweets Tuesday morning, President Donald Trump revisited his criticism of the Federal Reserve, blasting the central bank as "pathetic" and "slow moving."

A day after the stock market experienced its worst day in a dozen years, Trump renewed his call for the Fed to cut interests rates to match weaker "competitor" economies.

"Our pathetic, slow moving Federal Reserve, headed by Jay Powell, who raised rates too fast and lowered too late, should get our Fed Rate down to the levels of our competitor nations. They now have as much as a two point advantage, with even bigger currency help. Also, stimulate!"

In a second tweet, he wrote that "the Federal Reserve must be a leader, not a very late follower."

Powell was nominated Fed chairman by Trump in 2017.