WASHINGTON (AP) — Former President Barack Obama and his wife, Michelle, are stepping up their political involvement ahead of the November midterm elections, moves aimed at bolstering Democratic enthusiasm as the party aims to regain control of Congress. Advisers cast a speech Barack Obama will give Friday, when he accepts an ethics in government award, as the moment he will re-engage in politics after spending most of his post-presidency on the partisan sidelines. He’ll enter the fray in a more traditional campaign sense Saturday when he stumps for several House Democratic candidates from California at an event in Orange County.