The Fed left its benchmark interest rate unchanged for 3rd straight meeting on Wednesday
All Republican senators voted in favour and Democrats opposed
Powell has signalled he could stay on Fed board after term as chair ends May 15
Kevin Warsh was questioned by the Senate Banking Committee Tuesday
Consumer prices rose 3.3%, up from 2.4% in February
Prices rose 2.8% in the month
Cleveland Fed's estimates inflation could reach 3.5% in April
Investors see rising possibility of a rate hike by October
Fed officials expect the Iran war will worsen inflation this year, but have little impact on economic growth
With fuel prices likely to stoke inflation, projected rate cut less certain this year