But the fact that the committee continues to trail Democrats is likely to heighten the reliance on outside groups like Crossroads GPS, which was formed by Karl Rove, a former top political adviser to George W. Bush.
For a theater like Crossroads, Mr. Wilson's words were a resounding endorsement.
But like Crossroads, the company never returned to the level of state aid it once received.
And they created 501(c) "social advocacy" groups like Crossroads GPS to offer secrecy to campaign donors.
Most of the spending is coming from tax-exempt 501(c)(4) organizations like Crossroads GPS, which may accept large corporate and individual donations without disclosing donors' identities.
Democratic candidates at all levels have expressed concerns about not having the firepower to respond to conservative groups like Crossroads and Americans for Prosperity.
Outfits like Crossroads and Priorities USA run both tax-exempt 501(c)(4 s and more overtly political arms, known as 527 organizations.
Outside groups, like the "super PACs" that support certain candidates, and independent groups, like Crossroads GPS, are also doing their part.
With millions flowing from groups like Crossroads, it will be difficult for Democrats to keep pace when they are defending so many seats.
Even before the court's ruling, Mr. Tester had found himself strafed by Republican groups like Crossroads GPS financed by donors who have largely gone unreported.
The elections commission could, theoretically, step in and rule that groups like Crossroads GPS should register as political committees, which would force them to disclose their donors.
