FILE - In this Feb. 27, 2012 file photo, Democrat Elizabeth Warren, who is seeking the U.S. Senate seat held by Republican Scott Brown, speaks during a news conference at her campaign headquarters in Somerville, Mass. Warren is tapping the wallets of lawyers, academics, union members and filmmakers, while Brown is relying heavily on donations from the financial and health care sectors, as they raise funds for what could be the costliest Senate race in Massachusetts?s history. (AP Photo/Elise Amendola, File)