In this Oct. 3, 2012, file photo combo, Republican presidential nominee Mitt Romney and President Barack Obama speak during their first presidential debate at the University of Denver, Colo.David Goldman, Eric Goldman/The Associated Press
Earlier, The Globe's Adam Radwanski, Affan Chowdhry and Hannah Sung previewed tonight's final presidential debate on foreign policy: Is it Obama's debate to lose?
Watch the discussion via Google Hangout below (or follow along at The Globe's Google+ headquarters).