intensifying. hillary clinton and bernie sanders campaigning late into the night. this week's debate causing a shift in strategy. is donald trump sexist? his daughter ivanka answers that question in a cnn exclusive. breaking overnight. computers crashing across the country at airports. good morning. welcome to "early start." i'm alison kosik. >> nice to have you here. i'm christine romans. it is 5:00 a.m. in the east. let's begin with hillary clinton. capitalizing with a series of campaign events in las vegas. last night at her very first large rally in months, clinton basked in afterglow. >> i am thrilled that people finally got a chance to compare the democrats to the republicans. and i think we came out of that pretty well. >> with more on the clinton