behind me saying that he is here to tell the crowd that bernie is back. this is senator sanders first campaign since he suffered a heart attack and spent three days in the hospital. he is coming back today with a significant endorsement from representative alexandria ocasio cortez. she is expected to make her endorsement at today's rally. the two have worked closely together on things like climate change. aoc will be the second endorsement for senator sanders this week from a member of the so-called progressive squad. congresswoman ilhan omar endorsed him a few days ago. when you look at the polling senators sanders has consistently come in third place among democratic candidates trailing behind both biden and warren. in recent warren has pulled ahead. you see sanders laying out differences between himself and warren. the latest poll bernie third place. age has become a factor and