Here we go again: 2nd GOP debate tonight

Just five days after they met in Simi Valley, Calif., eight of the 2012 GOP presidential contenders are set to take the debate stage again Monday and pick up where they left off—with a vigorous discussion about Social Security.

The event, sponsored by CNN and the group Tea Party Express, will take place in Florida, a state that serves as a crucial battleground in both the primary and the general election. And that senior-heavy locale only heightens the stakes for the expected battle, which is likely to expand beyond last week’s two-man fight between Mitt Romney and Rick Perry.