The battle for the Southwest boils down to two states: Arizona and Texas. And unless Republicans redraw the congressional map in the Lone State State once again — highly unlikely — there are not many competitive races. Here are the top five races to watch in the Southwest: Arizona's 2nd District. Rep. Ron Barber, a Democrat, won re-election to a full term last fall. But his close race against retired combat pilot Martha McSally wasn’t easy, and she has already filed paperwork for a rematch. Rothenberg Political Report/Roll Call rating: Pure Tossup. Get the full Rothenberg Political Report analysis here ($). (more…)