In Colorado, the GOP gubernatorial primary between Scott McInnis, who's been plagued by a plagiarism scandal, and businessman Dan Maes is too close to call.

Appointed incumbent Senator Michael Bennet beat Andrew Romanoff in the Democratic primary 54 percent to 46 percent. In the general election, Bennet will face Republican Ken Buck, a former district attorney who was backed by Jim DeMint in his primary against Lt. Gov. Jane Norton. Buck led Norton 52 percent to 48 percent with 80 percent of precincts reporting.

The Real Clear Politics average of polls shows Buck leading Bennet by 1 percentage point.

In Connecticut, as expected, former pro-wrestling executive Linda McMahon won the Senate primary and will face Democratic Attorney General Dick Blumenthal. Meanwhile, Ned Lamont lost the Democratic gubernatorial primary.

In Georgia, the GOP gubernatorial primary is too close to call. The Palin-backed Karen Handel is trailing by a couple thousand votes:

With 100 percent of precincts reporting, former Rep. Nathan Deal (R) was ahead of over former state Secretary of State Karen Handel (R) in Georgia's gubernatorial runoff, setting the stage for what's certain to be a contentious battle in the Peach State this November.

A recount is a real possibility given that Deal's lead was just 2,431 votes out of more than 581,000 cast.

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