A Tierney primary loss could actually help Democrats.
New additions include a mix of GOP candidates in competitive seats and likely winners.
Cruz said Marilinda Garcia will fight to stop Obama's amnesty.
A new poll shows Rep. John Tierney (D-Mass.) is in a tight race with his primary challenger.
SAN DIEGO — One of the closest House races in the country could come down to style as much as substance.
Business group's backing of Rep. Scott Peters (D-Calif.) gives him big boost in tough race.
GWU Battleground poll finds Republicans with a 4-point edge over Democrats this fall.
Ex-congresswoman's gun control PAC airs ads to help vulnerable Rep. Ron Barber (D-Ariz.).
Peters, DeMaio offer competing visions to fix dysfunction in Congress.
Gary Kiehne concedes to Andy Tobin in GOP primary to take on the vulnerable Arizona Dem.