FILE – In this May 12, 2011, file photo Senate Ethics Committee Chair Sen. Barbara Boxer, D-Calif., is pursued by reporters on Capitol Hill in Washington. Boxer chairs the Senate Ethics Committee, ... more 
FILE – In this May 12, 2011, file photo Senate Ethics Committee Chair Sen. Barbara Boxer, D-Calif., is pursued by reporters on Capitol Hill in Washington. Boxer chairs the Senate Ethics Committee, which is investigating Sen. Robert Menendez, R–N.J. From the "Keating Five" scandal, one of the more celebrated Congressional ethics cases, to more recent investigations, members of Congress have regularly run into trouble when they cross a sometimes blurry line between helping a supporter and engaging in a quid pro quo. (AP Photo/J. Scott Applewhite) less 
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Associated Press | Photo By J. Scott Applewhite
Sat, May 4, 2013 2:46 AM EDT