Sarbanes retirement draws 28 candidates

Information on all the candidates for Senate are listed at the end of this story.

The main event of the primary election is the race for U.S. Senate, as Paul Sarbanes retires after five terms in office, an unprecedented feat for a Maryland Senator.

Losing a fixture of Maryland politics has sparked a stampede of 28 candidates to succeed the Baltimore Democrat, including a longtime congressman, a civil rights leader and the sitting lieutenant governor.

"Without a contested gubernatorial primary, the U.S. Senate race is really the only major election which could cause a spike in voter turnout," said Keith Haller,...