FILE - In this Tuesday, Nov. 3, 2009 file picture, Senate Environment and Public Works Committee Chair Sen. Barbara Boxer, D-Calif. presides over the markup on the Climate Change legislation on Capitol Hill in Washington. The widely played video clip of U.S. Sen. Barbara Boxer reprimanding a general for calling her 'ma'am' is the gift that keeps on giving for the two Republicans hoping to challenge her in 2010. (AP Photo/Harry Hamburg)AP – The widely played video clip of U.S. Sen. Barbara Boxer reprimanding a general for calling her “ma’am” is the gift that keeps on giving for the two Republicans hoping to challenge her next year.