Sen. Hillary Clinton won Indiana by a mere two points. But it looks like Rush Limbaugh was responsible for all of that margin, and then some:
It’s possible that Operation Chaos may have had an effect: 5.4% of the 1.27 million voters in Indiana's primary were registered Republicans who voted for Clinton, and 60% of those told exit pollers that they would vote for McCain over Clinton (by contrast, most Obama Republicans say they would vote for him over Mac). Assuming that 60% were Limbaugh's minions, that's 41,000 votes for Clinton—in a contest where she won by only 18,000.
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too late
I don't doubt he had an effect, but he also did some other things. Many conservatives saw the ploy as rather distastefully and didn't like the muddied waters that Limbaugh created. Also, since Obama is clearly going to be the winner, and Rush had announced that "He's rather run against Clinton", he has defined that he actually lost in his attempt to get what he wants.
When you act so badly that even the hard core Conservatives speak up, you went overboard.
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