"Right now I'm inclined to call this a tossup, " said Jennifer Duffy, senior editor of the Cook Political Report.

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That is reason enough to regard this race as a tossup.

CNN: Nevada Senate Race A Tossup

The major nonpartisan political rating services see it as a tossup.

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In the match-play golf format, nearly every early round match is a tossup, with the higher-seeded golfer only winning at a 58% rate in the first two rounds.

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That means even if McCain were to go 6-for-6 in the current tossup states, he would still fall short of the 270 electoral votes needed to capture the White House.

CNN: McCain-Palin on defense in must-win red states

But right now this race is a tossup.

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This game is a tossup.

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