WASHINGTON (AP) — During his first year in office, President Joe Biden took action on a number of his key campaign promises, from rebuilding U.S. alliances globally to distributing vaccines across America and the world.

But others remain works in progress or dependent on Congress to address. That's particularly true of his promises to reform the nation's immigration system, where Biden is caught between the demands of his Democratic base and Latino voters and the realities of a steep influx of migrants to the U.S.

A look at where Biden stands on some of his key promises as he rounds out his fi...