** FILE ** Volunteer Stella Chambers, center, explains some of the Affordable Health Care Act to visitors to a health care coverage registration site hosted by Service Employees International Union-United Healthcare Workers, Monday, March 31, 2014, in Sacramento, Calif. (AP Photo/Rich Pedroncelli)
** FILE ** Eric Alvarez, 4, plays as he and his sister, Emily, 3, wait with their grandparents, Antonio Bello, left, and Maria Refugio, to sign-up for health care coverage at a registration site hosted by Service Employees International Union-United Healthcare Workers, Monday, March 31, 2014, in Sacramento, Calif. (AP Photo/Rich Pedroncelli)
Keith Saunders, left, a certified Cover California insurance agent, explains a health insurance plan to Mark Tammes at a registration site hosted by Service Employees International Union-United Healthcare Workers, Monday, March 31, 2014, in Sacramento, Calif. (AP Photo/Rich Pedroncelli) ** FILE **
** FILE ** Michael Wilson, left, a certified Cover California insurance agent, explains a health insurance plan to Jose Gomez and his wife, Laura, at a registration site hosted by Service Employees International Union-United Healthcare Workers, Monday, March 31, 2014, in Sacramento, Calif. (AP Photo/Rich Pedroncelli)
Across the street from the United States Capitol, people holding a banner are silhouetted by the sun as they join others from organizations from across the United States such as the Service Employees International Union (SEIU) at Upper Senate Park in Washington, D.C., Thursday, Dec. 8, 2011, for an Interfaith Service for the Jobless, with unemployed workers and faith leaders. (Rod Lamkey Jr./The Washington Times) ** FILE **
A protest march organized by the Service Employees International Union winds through downtown on 14th St. NW in Washington, D.C. on Dec. 7, 2011. (T.J. Kirkpatrick/ The Washington Times)
A protest march of members of the Service Employees International Union fills the intersection of 16th St. NW and K st. NW in Washington, D.C. on Dec. 7, 2011. (T.J. Kirkpatrick/ The Washington Times)
A protest march organized by the Service Employees International Union winds through downtown on to I St. NW on the way to join an Occupy DC protest on K St. NW in Washington, D.C. on Dec. 7, 2011.
(T.J. Kirkpatrick/ The Washington Times)
Associated Press
Andy Stern, seen here in October 2009 while still president of the Service Employees International Union, is said to be the subject of an FBI corruption probe.