An otherwise softball and uneventful question-and-answer session with Gov. Christie turned starkly emotional last week, as the below video reveals, when an interviewer asked him about the lowest moment of his life.

Christie often speaks about his mother, and the story about her last words to him on her death bed close out many of his town hall meetings. But I had never heard the anecdote he shared last week about the time his mother told him that she was going to die. It contains a startling detail about his mother's painful past.

The clip was filmed at a conference in Las Vegas for KIPP, a national school operator with facilities in New Jersey. Reporters were not allowed in to hear Christie's speech, but KIPP later posted the complete interview online. Here's an excerpt I took from that speech: