A former adviser to Barack Obama's presidential campaign who once called Sen. Hillary Rodham Clinton a "monster" is now working on the transition team for the agency that Clinton may lead. State Department officials said Friday that Samantha Power is among foreign policy experts the president-elect's office selected to help the incoming administration prepare for Clinton's anticipated nomination as secretary of state. The Obama transition team's Web site includes Power's name as one of 14 members of the "Agency Review Team" for the State Department. During the Democratic primary campaign, Power called Clinton "a monster" in an interview. She then resigned, calling her remarks inexcusable and contradictory to her admiration for Clinton.