Casino mogul Sheldon Adelson gambled more than $54 million on Tuesday's elections. And he lost. The quixotic chairman of the Las Vegas Sands gaming company rose to the top of campaign giving in 2012, gaining notoriety for almost single-handedly staking the campaign of Republican primary contender Newt Gingrich and then continuing to make audacious contributions once Gingrich dropped out – with millions more going to GOP nominee Mitt Romney and two superPACs supporting his bid.

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