Um… Sarah Palin was of course running with that other guy.

From the McCain/Palin (archived) website:

Effective Missile Defense

John McCain strongly supports the development and deployment of theater and national missile defenses. Effective missile defenses are critical to protect America from rogue regimes like North Korea that possess the capability to target America with intercontinental ballistic missiles, from outlaw states like Iran that threaten American forces and American allies with ballistic missiles, and to hedge against potential threats from possible strategic competitors like Russia and China. Effective missile defenses are also necessary to allow American military forces to operate overseas without being deterred by the threat of missile attack from a regional adversary.