The final presidential debate in the knockdown, drag out fight that is Campaign 2012 is tonight in Boca Raton, Florida. Round three will be a foreign policy discussion hosted by CBS News' Bob Schieffer. Mitt Romney won the first debate, but President Obama came back strong in the rematch. That makes tonight’s showdown a tie breaker of sorts.

Foreign policy isn’t generally considered Romney’s strong suit, so a victory tonight could be just the boost he needs to finally turn those very close poll numbers decisively his way. The Commander-in-chief might be more in his element, but given the complexity of foreign policy issues, the temptation to get professorial and long-winded will be great, which could cost Obama some much needed traction.

Will the candidates get specific about their foreign policy prescriptions? Who will take charge of the Libya issue in this debate? What questions should Schieffer ask Obama and Romney?

Guest:

Ron Elving, Senior Washington Editor for NPR; also writes the "Watching Washington" column for NPR.org

Tim Mak, Defense Reporter for POLITICO