Callum Borchers, Globe correspondent, here to fact check tonight's debate. I doubt we'll see many "gotcha" moments, but I'll add context to candidates' statements that might paint only part of the picture. I'll also point you to stories and video clips as they come up.
Michelle Obama and Ann Romney introduced.
ANALYSIS: I am Bryan Bender, the Boston Globe's national security reporter based in Washington. I will be providing context tonight on President Obama and Governor Romney's statements on defense and foreign policy. Keep an ear out for issues where the candidates have been pushing dueling narratives in recent weeks: the alleged terrorist attack in Libya; the American relationship with Israel; the timeline and pace of withdrawal in Afghanistan; defense spending cuts; and international efforts to halt Iran's enrichment of nuclear material. Look for President Obama to try to make Romney appear naive and unprepared for the role of commander-in-chief, even unnecessarily provocative (and remind voters of the raid that killed Osama bin Laden and his promise fulfilled to get out of Iraq). Look for Governor Romney to try to make the case that Obama has weakened America's influence in the world and undercut American exceptionalism
ANALYSIS: One big thing to watch for tonight, I think, is how Romney responds if - OK, when - Obama goes after him. Romney can be great when he's on offense, as we saw in the Denver debate. But despite all the time he's spent in the political spotlight, he can still get rattled easily. A confident, calm Mitt Romney can attract votes. A brittle Mitt Romney can't.