Jerome Powell's term as central bank chair ends in May. Sophie Park/Getty Images It's the fourth Fed day of the year — and it's set to be Jerome Powell's swan song. The Federal Open Market Committee will announce its April interest rate decision at 2 p.m. ET. Powell's term ends on May 15, making this meeting his last, pending the confirmation of Kevin Warsh, Trump's nominee to be the next Fed chair. The meeting also comes amid a new development in the Department of Justice probe into the Fed...