By Tim Reid and Daniel Trotta PHOENIX (Reuters) -Competitive governors contests are on the ballot in about a dozen states in Tuesday’s U.S. midterm elections, with outcomes that hold far-reaching consequences on issues such as abortion, voting rights and guns. The high stakes have brought increased money and attention to the state-level races, which typically get overshadowed in midterm elections by the fight for control of Congress. Democrats are fighting to keep control of governorships in Pennsylvania, Wisconsin and Michigan to maintain the power to veto any legislation by the three states’…