Harris asked to address policy changes
Harris was asked about her policy position changes on issues such as fracking, key in Pennsylvania -- which she said during her last campaign for president she wanted to ban, but now won't.
Harris said that as vice president she has not banned fracking, and that her position is that we "have got to invest in diverse sources of energy."
"We have had the largest increase in domestic oil production in history because of an approach that recognizes that we cannot over rely on foreign oil," she said.