Yes -- Former Va. Gov. Mark Warner Set to Seek Senate Seat

From The Washington Post:

Former Virginia governor Mark R. Warner will announce today that he is running for the U.S. Senate seat being vacated by Republican John W. Warner, setting the stage for one of the most competitive races in the country next year, according to sources familiar with his decision.

Warner, 52, a self-described moderate Democrat, will make his announcement in an e-mail to supporters Thursday but won't formally begin his campaign until after the state legislative races in November, according to the sources, who spoke directly with Warner.