The United States is seeing a revival in union membership.In the last six months, the National Labor Relations Board has recorded a 60 percent increase in workers filing for petitions that allow for union elections to take place.The circumstances that have prompted these unionization efforts have some similarities with the period that brought the largest gain in union membership in U.S. history, during the 1930s.What can that era tell us about today, and are current efforts just a blip?Guest: Noam Scheiber, a reporter covering workers and the workplace for The New York Times.Want more from The Daily? For one big idea on the news each week from our team, subscribe to our newsletter. Background reading: Since the Great Recession, the college-educated have taken more frontline jobs at companies like Starbucks and Amazon. Now they’re helping to unionize them.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.