Poll after poll continues to show strong enthusiasm for Democrats, including for Senate candidates in deep red states. But are they setting expectations of a blue wave too high? We look at recent history for a reality check. --- Guest: Zachary B. Wolf, CNN Politics Senior Writer Host: David Rind Producer: Paola Ortiz Showrunner: Felicia PatinkinLearn more about your ad choices. Visit podcastchoices.com/adchoices