Rep. Tim Bishop (D-N.Y.) will face wealthy businessman Randy Altschuler in November.
Altschuler is running on a unified Conservative-GOP line.
Republicans have liked their chances of picking off Bishop. But the party's three-way primary contest didn't leave any of the candidates with over 50 percent of the vote. Altschuler finished first with 45 percent of the vote, former prosecutor George Demos had 30 percent and third with 24 percent was business consultant Chris Cox, the son of the state GOP chairman, Edward Cox, and a grandson of President Richard Nixon.
Cox had the support of several Tea Party organizations but Altschuler had the endorsement of the Conservative Party, which may help him keep the right unified going into November.
Still, money that could have gone toward blasting Bishop was burned up in the nomination contest. Altschuler and Cox spent a combined $3 million of their own money on the primary campaign.