Independent central banks can more easily take unpopular steps to fight inflation, such as raise interest rates, which makes borrowing more expensive.

Lisa Cook, a Biden appointee, is the first Black woman to serve on the Fed's board.

A widening battle for control of the U.S. central bank, considered an anchor institution of the global financial system, seems to already be underway.

Two days earlier, the suddenly embattled Fed governor Lisa Cook said she had "no intention of being bullied to step down."

Independent central banks can more easily take unpopular steps to fight inflation, such as raise interest rates, which makes borrowing more expensive.

Adam Posen, president of the Peterson Institute, said Powell's remarks translated to: "even if it pleases the president, we’re going to make the right call."

Fed governors typically step down before their terms expire, but they may stay on until a president from their political party is in the White House.