inflection point. with half the number of candidates of the previous debates on stage and the likelihood the field could soon narrow even more, right now the candidates are taking their momentum or lack thereof and heading back onto the campaign trail, making their case to the voters. last evening was at times passionate, combative, even raucous, but it also allowed the debaters to get personal over issues including health care, immigration and gun laws. this third debate also marked a major shift for many of the candidates, offering up a full-on embrace of the very popular former president, barack obama. maybe it was the setting, on the stage of an historically black college or maybe efforts to distance themselves from obama policies in the first few debates simply fell flat, but this time they set a remarkable course correction. >> i know that the senator says she's for bernie. well, i'm for barack.