Today, millions of voters across six states will cast their ballots for the two viable Democratic candidates left: former Vice President Joseph R. Biden Jr. and Senator Bernie Sanders. What began as a contest with historic diversity of race, gender and sexual orientation has come down to two heterosexual white men over 70.
Astead W. Herndon, who covered Senator Senator Elizabeth Warren for The New York Times, asks: How did we get here? With Austin Mitchell and Jessica Cheung, producers for “The Daily,” Mr. Herndon traveled to Massachusetts to find out. For more information on today’s episode, visit nytimes.com/thedaily.