Money in politics isn’t just about campaign funds, is also involves what happens after a lawmaker leaves office.

In office, Sen. Scott Brown (R-MA) saved Wall Street banks tens of billions of dollars by writing loopholes in the Dodd-Frank financial overhaul law.

Today, the law and lobbying firm Nixon Peabody announced that it will be hiring Brown to assist its “practice on business and governmental affairs as they relate to the financial services industry as well as on commercial real estate matters.”

Nixon Peabody has clients that include Goldman Sachs, which paid it $140,000 in 2012.

Keep in mind that while it would be illegal for Brown to register as a federal lobbyist before his cooling off period ends, he is free to unofficially act as a lobbyist.

While Brown will literally work for Wall Street, Sen. Elizabeth Warren (D-MA) has been aggressively taking on the Big Banks. Last week, at a stunning hearing before federal regulators, she asked why banks that launder money for drug lords are not being put out of business. Watch it:

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