The Private Equity Growth Capital Council has a new president with Democratic credentials who has been through Washington's revolving door.

Steven Judge won the job after serving since last year as interim head of the trade group, which, among other things, lobbies against proposals to increase taxes on carried interest. Those proposals have gained steam in recent weeks because of revelations that carried interest enabled GOP presidential candidate Mitt Romney to keep his tax rate lower than that paid by many Americans who made considerably less.

Before coming to the council, Judge worked for 14 years as the lead ...