After years of ardent support for the Iraq war, Connecticut Sen. Joseph Lieberman (news, bio, voting record) could become that conflict's first big political casualty in a Democratic primary race fueled by rising anti-war anger.
Lieberman, the party's vice presidential nominee in 2000, faces a growing challenge from a political neophyte who has rallied Democrats angered by the senator's enthusiastic backing of the war and willingness to support Republican President George W. Bush on other issues.
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