The History of Political Correctness in America; London's Muslim Mayor; Sherman Alexie

Coming up on today's show:

• WNYC's Andrea Bernstein and WNYC/NJPR's Matt Katz stop by to round up the political news from Atlantic City and the West Virginia Primary.
• The New York Times and Itnernational Herald Tribune's Roger Cohen looks at London's election of Sadiq Khan as its new mayor as a triumph of openness and tolerance, as opposed to U.S. Republicans' choice of Donald Trump as their presumed presidential nominee.
• Hear a history of political correctness in American politics, with The Washington Post's Philip Bump as part of our "30 Issues in 30 Weeks" election series.
• The author Sherman Alexie talks about his first-ever picture book for children.
• Pierre Debbas, a lawyer who represents wealthy foreign nationals, and WNYC's Ilya Marritz, who reports on the real estate market, discuss a new federal government rule that requires companies that buy luxury condos to reveal the names of their shareholders.