Stringers say Serena and Venus Williams along with Kim Clijsters are among the few top players left still playing with a full racket head of gut.

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It is a measure of how far the immigration debate has moved from head to gut that Mr Tancredo is now in many ways mainstream (and his immigration caucus has 92 members).

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Here though, is a moment that is both gut wrenching and head-scratching.

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That afternoon, as he crawled back to Barnes, the gut feeling worked its way up his throat and struggled into his head.

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By disregarding the industry wisdom that gut feelings, day-to-day poll movements, and talking head commentary are what matter, he has decimated the value of these superficial judgments.

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