Advocate staff photo by HEATHER MCCLELLAND -- Bill Cassidy smiles at his wife, Laura, after making a speech to his supporters after winning the U.S. Senate race at the Crowne Plaza Hotel Saturday, Dec. 6, 2014.

Former Florida Gov. Jeb Bush set off a frenzy Tuesday, inching closer to becoming the first serious Republican contender for the GOP presidential nomination with an announcement that he’s formally exploring the option.

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