Thursday, Apr. 01, 2010

Cory Booker

Age: 40
Occupation: Mayor of Newark, N.J.
Previous TIME 100 Appearances: 0

Booker's dogged push to revamp one of America's perennially troubled cities has been bumpy at times, but it's burnished his credentials as a reformer. Young, smart and debonair, he's a rising star in the Democratic Party.