WASHINGTON (AP) — Control of Congress is stake this election. Races for the House and Senate will determine which party holds the majority — and the power to boost or block a new president’s agenda. Key contests are playing out alongside the White House race but also in unexpected corners of the country. In New York and California, Democrats are trying to win back Republican-held seats and House control. Vote counting in some races could extend well past Tuesday. Senate attention is focused on Montana and the “blue wall” turf of Pennsylvania, Michigan and Wisconsin, as Republicans try to wrest the majority from Democrats. A few seats could determine the outcome.