WASHINGTON (AP) — In an unexpected turnabout, Sen. Joe Manchin has announced that he has reached an expansive agreement with Senate Majority Leader Chuck Schumer on health care costs, energy and climate issues, taxing higher earners and large corporations and reducing federal debt. Manchin, D-W.Va., whose resistance had long derailed sweeping legislation on those issues, abruptly revealed the agreement in a press release. It provided virtually no details on the accord. The deal has eluded Schumer and Manchin for months. There was no immediate explanation why Manchin had suddenly agreed to the far broader package.