John McCain is a fighter -- at least when it comes to defending his military record. Today, a "Truth Squad" for the presumptive Republican nominee forcefully rejected General Wesley Clark's comments that McCain lacks foreign policy experience, and suggested Barack Obama do the same. Led by John Warner, a Virginia Republican who serves with McCain on the Senate Armed Services Committee, the squad blasted Clark and sought to reenforce the military reputation of McCain, a former Vietnam POW who once headed the largest Navy aviation squadron. "I find General Clark's comments to be unworthy, unseemly, for someone of his stature....