Terry Gross

In 1937, frustrated by a conservative Supreme Court that struck down a series of his New Deal programs, President Franklin Roosevelt set about to reform the court — by expanding it and adding as many as six liberal justices. The controversial proposition is examined in writer Jeff Shesol's new book, Supreme Power: Franklin Roosevelt vs. the Supreme Court.

Wolf was the lead singer of the J. Geils Band, which led many to assume he was J. Geils. He explains how the band — with hits such as "Centerfold," "Freeze Frame" and "Love Stinks" — actually got its name and discusses his new country-influenced solo album, Midnight Souvenirs.

The Grammy-winning country-music fiddler is still recording new tracks 70 years after he picked up his first instrument. Gimble's new album, Playing With Friends, features Vince Gill, Merle Haggard, Willie Nelson and Garrison Keillor.