Sen. Russ Feingold was the lone "No" Democratic vote on Wall Street reform, which passed the Senate today after barely overcoming a Republican filibuster. However, Feingold is not alone on another front -- he's among several Democratic incumbents in serious electoral trouble.

A new Rasmussen poll (July 13, 500 LV, MoE +/- 4%) finds the three-term incumbent trailing Republican Ron Johnson by 1 point, a statistical tie that amplifies Feingold's difficulties heading into November. Feingold has taken just 46% in the last three months of polling, while Johnson has slowly crept up from 44% in May to 45% in June, and now 47% in July.

He continues to lead Republican Dave Westlake by double digits.

Johnson 47 - Feingold 46 - Und 6

Westlake 37 - Feingold 51 - Und 6

RCP rates this race a Toss Up.

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