Cleveland Federal Reserve President Beth Hammack warned Tuesday that demand for artificial intelligence infrastructure is contributing to inflation and that interest rate increases could be necessary if elevated prices persist. Speaking to CNBC's Sara Eisen at the European Central Bank Conference in Sintra, Portugal, Hammack said, "We've got inflation that's too high, and it's been too high for the past five years. When I look at policy, if that continues, it may mean that we need higher interest rates to b ...