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Alabama Senate candidates Roy Moore and Doug Jones are locked in a dead heat ahead of Tuesday's "all but impossible" to predict election. Although a Fox News poll published Monday shows Jones, the Democratic candidate, up 10 points, a competing poll by Emerson shows Republican contender Moore up 9 points. RealClearPolitics' average between Nov. 27-Dec. 10 shows Moore up just 2.5 points.

"Turnout is always tough to predict in a special election, especially one two weeks before Christmas," NBC News writes. "Even establishing a baseline of expectations for the race is slippery, since few have bothered polling a state where elections are generally predetermined for candidates with an 'R' next to their name on the ballot."

Moore is accused of pursuing girls as young as 14 while he was in his 30s. Even Alabama's Sen. Richard Shelby (R) admitted, "I couldn't vote for Roy Moore."

The betting markets do have a favorite candidate, giving "Moore about an 80 percent chance of victory," FiveThirtyEight writes — or "roughly the same chance they gave Hillary Clinton just before the 2016 presidential election."