(NEWSER– You might remember Sen. Rob Portman as a top Mitt Romney surrogate and VP shortlist candidate—we deemed him "dull as dirt." Well, today he's doing something decidedly not dull: He's announcing an about-face on his longstanding opposition to gay marriage. In an interview with CNN, the Ohio conservative reveals that his 21-year-old son, Will, is gay, and that discovering that fact two years ago caused him to rethink his position.

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