"House Energy and Commerce Committee leaders [on February 12] sent a letter to Treasury Secretary Jack Lew ... seeking documents related to: [1] The costs or burdens of the law's requirements on employers with more than 50 employees, and on employers with more than 100 employees, that Treasury relied upon when delaying employer mandate; [2] The costs or penalties for individuals under the health law that have been prepared for or by Treasury; [3] The constitutional or statutory authority of Treasury to delay the employer mandate; and [4] All documents exchanged between or among Treasury, HHS, and the Executive Office of the President [EOP] referring or relating to the latest delay of the employer mandate and, specifically, feedback or analysis provided by HHS or the EOP to Treasury."