Maryland Democrats selected former NAACP president Ben Jealous Tuesday as their nominee to challenge popular Republican Gov. Larry Hogan in November. Jealous, 45, beat Prince George's County Executive Rushern L. Baker III, who was backed by most of Maryland's elected Democratic officials. Jealous, who ran on a boldly progressive platform, was backed by teachers' unions, Sen. Bernie Sanders (I-Vt.), Sen. Cory Booker (D-N.J.), Sen. Kamala Harris (D-Calif.), and comedian Dave Chapelle. He is considered the underdog against Hogan in reliably blue Maryland, and if he wins, Jealous will be the state's first black governor.