nator Patrick Leahy and Ranking Member Senator Chuck Grassley, and their personal and committee staffs, particularly Lydia Griggsby; Representative Darrell Issa, chairman of the House Committee on Oversight and Government Reform, Ranking Member Representative Elijah Cummings, and Representative John Mica, ch

g group whose consultants included Tanya Rahall, sister of Representative Nick J. Rahall II, a West Virginia Democrat; and a friend of Representative Darrell Issa, Republican of California. Both congressmen were booked on a trip to Kazakhstan to discuss energy policy with Mr. Nazarbayev. Before their departure,