Via press release:

(Washington, DC) — On Tuesday, March 31st, actors from the award winning television show The West Wing will join workers and members of Congress for an event to unveil a new ad and grassroots campaign: “Faces of the Employee Free Choice Act. Workers will also detail the grassroots momentum across the country for the Employee Free Choice Act.
Workers featured at the event are part of this new campaign that continues to ramp up efforts to have America’s workers tell their leaders in Congress why the Employee Free Choice Act is important to them. The campaign features new, creative billboards and building banners that will be displayed throughout Washington, DC and in states across the country.