U.S. Senate hopeful Democrat Alan Khazei, co-founder of the City Year youth program, addresses an audience during a campaign event, in Boston, Tuesday, April 26, 2011. Khazei, who entered the race for... more 
U.S. Senate hopeful Democrat Alan Khazei, co-founder of the City Year youth program, addresses an audience during a campaign event, in Boston, Tuesday, April 26, 2011. Khazei, who entered the race for the Massachusetts U.S. Senate seat held by Republican Scott Brown, made his formal announcement Tuesday in messages on social media and in e-mail to supporters. less 
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Associated Press | Photo By Steven Senne
Tue, Apr 26, 2011 7:30 PM EDT