A closely watched inflation report is set to reveal how much price growth picked up in May — and whether many American consumers remain mired in an affordability crunch. Wall Street forecasters expected the pace of personal consumption expenditures (PCE) to have quickened compared with April data amid higher oil prices and stronger consumer spending. The monthly PCE report is the Federal Reserve’s preferred inflation gauge. New Fed Chairman Kevin Warsh has said the central bank is committed to bringing inflation back to its 2% target — a level it has failed to reach for the past five years. Wall Street now anticipates the Fed will raise its key interest rate at least once by year’s end in a bid to counteract the stronger price growth.