Karen HintonKaren Hinton, a progressive PR pro and seasoned Democratic hand, has merged her Washington firm, Hinton Communications, with Omnicom's Mercury/Clark & Weinstock.

Hinton, who has worked with the amazon Defense Coalition to rap Chevron's human rights record in Ecuador and handled crisis support for stock research firm Gradient, takes a managing director title with the firm.

She was acting assistant secretary for public affairs at the U.S. Dept. of Housing and Urban Development during the Clinton administration and handled press for the Democratic National Committee and ex-Rep. and Agriculture Secretary Mike Espy.

Mercury has also added former Rep. Denny Rehberg (R-Mt.) as co-chairman and Erick Mullen, senior staffer to Sen. Chuck Schumer and Reps. Steny Hoyer and John Dingell, as a managing director.