WASHINGTON (AP) — President Joe Biden is meeting face-to-face with two moderate Democratic senators whose objections to the size of a proposed package of social and environment initiatives has thrown serious obstacles in its path. Biden met Wednesday with Arizona Sen. Kyrsten Sinema and planned to meet with West Virginia Sen. Joe Manchin. The legislation represents the heart of the president’s domestic agenda. The stakes are high for Biden and his party for finding a pathway to push the measure through the closely divided Congress. Democrats will need all their votes in the 50-50 Senate to move the legislation through the Senate.