FILE - In this Feb. 10, 2012 file photo, Republican presidential candidate Mitt Romney speaks in Portland, Maine. Romney accepted nearly $280,000 in contributions raised by a former lobbyist for Fannie Mae, despite the GOP candidate's blistering criticism of the mortgage giant. Romney and other Republicans haven't identified other so-called fundraising ?bundlers,? leaving voters in the dark about who their campaigns are indebted to.  (AP Photo/Robert F. Bukaty, File) Photo: Robert F. Bukaty / AP