[Polymarket data shows Hassett's probability of becoming Fed Chair drops to 44%] On December 31, Polymarket data showed that the probability of National Economic Council Director Hassett becoming the next Federal Reserve Chair dropped to 44%, the probability of Walsh being elected rose to 33%, and the probability of Waller being elected was 11%. U.S. President Trump previously stated that the Federal Reserve Chair nominee is expected to be announced in January.