De Blasio as Candidate; Ask the Mayor; Supreme Court Updates; 2020 Ideas Festival: Baby Bonds; 10-Minute Explainer: Robocalls

On today's show:

• Ben Max, executive editor of Gotham Gazette and co-host of the Max & Murphy podcast, talks about the first day of Mayor Bill de Blasio's presidential campaign. Plus, WNYC's Brigid Bergen joins from Iowa to report on the first stop of the Mayor's national campaign. 
• Bill de Blasio, New York City Mayor, takes calls from listeners and discusses this week in NYC.
• Nina Totenberg, NPR legal affairs correspondent, gives analysis on how the court would approach Roe v. Wade, and gives an update on other news from the court.
• Naomi Zewde, postdoctoral research scientist at the Columbia University Center on Poverty and Social Policy, discusses her study of 2020 presidential contender and NJ Senator Corey Booker's "baby bonds" proposal which finds that the policy would considerably narrow existing wealth inequalities by race.
• Maureen Mahoney policy analyst from Consumer Reports, breaks down how robocalls work and what — if anything — people can do to stop them.