Clark has assisted some of the nation’s most prominent businesses in developing public positions and communications strategies for responding to regulatory challenges, promoting legislation, marketing high-end professional services, and pursuing mergers and acquisitions. For political clients he has written numerous nationally televised speeches, primarily during presidential campaigns.

​In the White House, Clark served as speechwriter and special assistant to both President Ronald Reagan and Vice President George Bush.

After two-and-a-half years serving the Vice President, he joined President Reagan’s speech writing staff in 1986 and remained with Mr. Reagan through the end of his term. A member of the Moscow Summit speechwriting team, he was also the lead writer for the Toronto Economic Summit in 1988 and helped shape the White House approach to the 1988 presidential campaign.

A Harvard M.B.A., Clark was a business consultant and writer in New York prior to his first government assignments, which concerned urban policy and international economic policy.

He has written on national and international issues for The Wall Street Journal, the Financial Times and other publications.