By James Ottavio Castagnera on 2012-09-14 13:08:14 |  From terrortrials.blogspot.com Sheldon Adelson - Caricature (Photo credit: DonkeyHotey ) Jim -- Sheldon Adelson , the conservative billionaire Las Vegas casino owner, has pledged to give up to $100 million -- whatever it takes -- to defeat Barack Obama . We know it's