Davis served four terms in the House as a Democrat representing the Birmingham area. An early supporter of Barack Obama, he ran for the Democratic nomination for governor of Alabama in 2010, which he lost to then-state agriculture commissioner Ron Sparks.
Two years later, Davis said he is one of many Americans who supported Obama in 2008 but has been disappointed with his job performance and pursuit of a progressive agenda. He announced on his blog last month that he was joining the Republican Party and registering to vote in Virginia, where he now lives.
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