Key interest rate expected to be cut for the first time in 4 years

Watch live in this story at 2:30 p.m. ET as Federal Reserve Chairman Jerome Powell discusses the key interest rate decision.WASHINGTON (AP) — Having all but tamed inflation, the Federal Reserve is poised to do something Wednesday it hasn’t done in more than four years: Cut its benchmark interest rate, a step that should lead to lower borrowing costs for consumers and businesses just weeks before the presidential election.And yet an unusual air of uncertainty overhangs this week's mee