Contributing Editor
Notable is the fact that the Republican candidates are winning among independents in five races, and the two where that is not the case have special twists: Delaware, where controversial Tea Party candidate Christine O'Donnell scored an upset in winning the GOP Senate nomination, and the Colorado governor race, which has become a three-way affair.
All the polls were of likely voters and conducted Sept. 17-21. The margin of error is 3.5 points except for Wisconsin where it is 3 points.
COLORADO
Republican Ken Buck is leading Democratic incumbent Michael Bennet in the Senate race by 49 percent to 44 percent with 4 percent in the "other/neither" category and 3 percent undecided. Both Buck and Bennet draw over 90 percent support from members of their own parties, but Buck is leading among independents by 50 percent to 36 percent, with 7 percent choosing other/neither and 7 percent undecided.

Democrat John Hickenlooper leads the three-way race for governor with 47 percent, followed by American
Constitution Party candidate Tom Tancredo at 29 percent and Republican Dan Maes at 21 percent, with 2 percent described as "other/neither" and 1 percent undecided. Tancredo, a longtime GOP congressman, is taking 38 percent of the Republican vote, leaving Maes with 48 percent, while Hickenlooper gets 95 percent backing from Democrats. Tancredo and Hickenlooper split most of the independent vote with Tancredo at 41 percent, Hickenlooper at 40 percent and Maes at 15 percent.
DELAWARE
Democrat Chris Coons leads O'Donnell in the Senate race by 55 percent to 39 percent with 4 percent answering other or neither and 2 percent undecided.

Had Rep. Michael Castle won the GOP nomination, he would be leading Coons by 55 percent to 37 percent. Coons gets 91 percent support from fellow Democrats while O'Donnell has 77 percent from Republicans. Castle would have attracted 80 percent Republican support had he been the nominee and would have trounced Coons among independents. Independents favor Coons by 50 percent to 43 percent with 4 percent answering other/neither and 3 percent undecided.
PENNSYLVANIA
Republican Pat Toomey is leading Democrat Joe Sestak by 49 percent to 44 percent with 4 percent answering other or neither and 3 percent undecided. Independents favor Toomey by 48 percent to 39 percent with 6 percent answering other or neither and 6 percent undecided.
In the governor's race, Republican Tom Corbett leads Democrat Dan Onorato by 52 percent to 44 percent with 3 percent in the other/neither column and 2 percent undecided. Corbett leads among independents by 53 percent to 37 percent with 6 percent answering other or neither and 4 percent undecided.
WISCONSIN
Republican Ron Johnson is leading Democratic incumbent Russ Feingold in the Senate race by 51 percent to 45 percent with 2 percent answering neither or other and 2 percent undecided. Johnson holds the edge among independents by 52 percent to 42 percent with 3 percent in the other/neither column and 4 percent undecided.
Republican Scott Walker is leading Democrat Tom Barrett by 53 percent to 42 percent in the governor's race, with 2 percent classified as other/neither and 2 percent undecided. Independents favor Walker by 56 percent to 35 percent with 5 percent answering other or neither and 4 percent undecided.
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