In this Oct. 24, 2011, file photo, Jill Stein of Lexington, Mass., speaks during a news conference outside the Statehouse in Boston. (AP Photo/Elise Amendola)

Photo by: Elise Amendola

In this Oct. 24, 2011, file photo, Jill Stein of Lexington, Mass., speaks during a news conference outside the Statehouse in Boston. (AP Photo/Elise Amendola)