From Sarah Palin to Mitt Romney to Clint Eastwood, the time it takes each new GOP 'star' to go from hero to zero is getting shorter and shorter

It's encouraging, really. Republicans in the US are displaying a growing inability to suspend disbelief. They convinced themselves that Sarah Palin was The Answer for quite a few years. They thought the Tea Party was The Answer for a much briefer time. Mitt Romney was The Answer for a couple of months, his running mate Paul Ryan lasted a couple of weeks and Clint Eastwood, the thrilling mystery guest at this week's Republican Convention, remained the man who could inspire a turning point – until he was several paragraphs into his speech.

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