WASHINGTON (AP) — President Joe Biden will soon be signing into law a major bill to revive the U.S. computer chip sector. The back story of how the legislation is reaching his desk after more than 18 months reveals the complexities of bipartisanship, even when all sides agree on the need to act. As administration officials see it, the bill cleared Congress last week because of a deep coalition and persistence. But many Republicans believe they provided crucial support only to be double crossed. Proponents say the billions for computer chips and scientific research could help to cut inflation, create factory jobs, defend the U.S. and allies and preserve an edge against an ambitious China.