The lawyer is David B Rivkin (not to be confused with David W. Rivkin, a younger more Liberal model). David B is a Russian emigre who earned his JD at Columbia Law School and proceeded to hold a variety of legal and policy positions during the GOP Golden Age of the Reagan and Poppy Bush eras.
Rivkin is a frequent participant in Congressional hearings and spends quite a bit of time enlightening the public about law and government policy via cable TV and conservative radio programs (e.g., CNN, MSNBC, NBC, ABC, CBS, FOX News, NPR, PBS, The Laura Ingraham Show, Al Jazeera, and the BBC, to name a few).
Rivkin also writes frequently, appearing in the Wall Street Journal, the National Review, the Washington Post, the New York Times, the Washington Times, the Heritage Foundation, and the Harvard Journal of Law and Public Policy.
As a matter of fact, it was an article in Politico Magazine, written by David B Rivkin and Elizabeth Foley, that gave Speaker Boehner the bright idea to sue the President. The article outlined a plan specifically for suing Obama for not rolling out Obamacare quickly enough.
There's more . . .