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

WSJ: Harkin's Exit Heralds Scramble for Senate Seat

The Obama campaign has acknowledged that Wisconsin which voted for the president in 2008 by 14 percentage points is a potential tossup state this November.

WSJ: Wisconsin Gov. Scott Walker Prevails in Recall Challenge

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.

CNN: Is civil discourse possible in race to replace Giffords?

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.

WSJ: Accenture Match Play Championship: Match Play Usually Results in Madness

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

Unless it is reversed, the Gore camp's decision will limit Clinton's campaigning to only one state truly considered a tossup: his home state of Arkansas, where the president will appear Sunday.

CNN: latimes.com: Gore turns down offer by Clinton to visit critical states

But right now this race is a tossup.

NPR: A Super Tuesday for Lincoln Chafee

This game is a tossup.

WSJ: NCAA Tournament: The Final Two: Louisville and ...

As CNN's King (John, not Larry) showed on his extraordinary touch-screen electoral map, if McCain were to win every single state that CNN analysts currently put in the "tossup category, " Obama would still win the White House by seven votes in the Electoral College.

NPR: The Hatchet And The Scalpel: A Debate Parable