3 polls, 3 solid flips: PA, CO, WI

3 polls, 3 solid flips: PA, CO, WI: "

The numbers have reached 50. Goodbye, incumbent dems:

Republicans are positioned to take Senate seats away from Democrats in three battleground states in widely different regions of the country, according to new McClatchy-Marist polls in Colorado, Pennsylvania and Wisconsin.

In Colorado, Republican Ken Buck leads incumbent Sen. Michael Bennet by 50 percent to 42 percent among likely voters.

In Pennsylvania, Republican Pat Toomey leads Democrat Joe Sestak by 51 percent to 42 percent.

In Wisconsin, Republican Ron Johnson leads Democratic Sen. Russ Feingold by 52 percent to 45 percent.

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