A top Senate Democrat on Tuesday said she would vote against a reappointment of Jerome Powell as chair of the U.S. Federal Reserve, calling him a "dangerous man" to lead the central bank. Senator Elizabeth Warren of Massachusetts, a long-time critic of the Fed"s oversight of Wall Street and member of the committee that reviews appointments to the Federal Reserve board, said having Powell appointed to a second term as the central bank"s chief is "not a risk worth taking." The White House has not yet announced a decision on whether to reappoint Powell, whose term as chair ends in February, or choose an alternative.