He is CEO of The Mellman Group, a polling and consulting firm whose clients include leading political figures, Fortune 500 companies, and some of the nation's most important public interest groups. Mellman has helped guide the campaigns of some sixteen U.S. Senators, eight Governors and over two dozen Members of Congress, as well as numerous state and local officials.

The Mellman Group counts among its clients the Majority Leaders of both the U.S. House and Senate (Leader Harry Reid, Leader Steny Hoyer). The firm has picked up a Republican seat every election cycle for the 25 years Mellman has been in business and is the only major Democratic polling firm never to have lost an incum-bent re-election for Senate or Governor. In addition to Leader Reid, Senate clients includes Maria Cantwell, Dan Akaka, Barbara Boxer, Carl Levin, and Frank Lautenberg. Gubernatorial clients include Jon Corzine, Jennifer Granholm and Jim Doyle.