Former Fed chair Jerome Powell warns the central bank loses credibility if presidents can fire officials, as the Supreme Court weighs Trump's bid to remove Lisa Cook.

In his first public remarks since stepping down as Fed chair, Powell says the central bank is undergoing a "stress test."

Fed Chair Jerome Powell warned that presidential power to fire Fed officials would destroy the central bank's credibility, as Trump's political pressure intensifies.

Jerome Powell, former head of the US Federal Reserve, has spoken out against political interference in the central bank. He emphasized the importance of protecting democratic…