Sen. John McCain says he will support President Barack Obama's request to intervene inSyria if the move would "reverse the situation on the battlefield."
McCain tells NBC it isn't sufficient to merely send a strong message to President Bashar Assad with a limited-range response. McCain says a resolution of intervention must include authority to degrade Syria's air defenses. The Republican says "it's an unfair fight" on the ground and that Assad has the upper hand.
McCain says if authorization from Congress doesn't change the balance of power and give the rebels a fighting chance, then it "will not have the desired effect."
Obama's former rival for the White House says he "cannot support something that might be doomed in the long run."