Ad Targets Scott Brown in New Hampshire

Hasn't actually announced a Senate run yet

Scott Brown isn't running for Senate in New Hampshire - so far - but an ad against him is.

The Senate Majority PAC, supporting incumbent Democratic Sen. Jeanne Shaheen, begins airing an ad today portraying Brown, the former Massachusetts senator, as a friend of Wall Street and big banks.

The ad, which the PAC says will run for 10 days, hits Brown for successfully supporting the elimination of fees on banks in the Dodd-Frank financial reform regulation of 2010 and for supporting exceptions to the "Volcker rule," which prohibits banks from making certain investments with their capital.