All 435 House seats , and 36 in the Senate are on the ballot in November . : When it comes to gubernatorial races , Republicans are defending 22 of the 36 seats up for grabs in November . Control of the Senate is the big story of the election . Senate Republicans face a difficult task of maintaining their majority . Republican success will be determined , in part , by outrage over Obamacare .
All 435 House seats , and 36 in the Senate are on the ballot in November . Control of the Senate is the big story of the election . Senate Republicans face a difficult task of maintaining their majority . Republican success will be determined , in part , by outrage over Obamacare .