On March 29, 2017 the U.S. House of Representatives Committee on Science, Space and Technology held a hearing entitled Climate Science: Assumptions, Policy Implications, and the Scientific Method. Testifying before the committee were Judith A Curry, John R. Christy, Michael E. Mann and Roger Pielke, Jr. It is quite a contentious hearing with Michael Mann hurling insults at anyone with whom he disagrees.
All of the wittnesses' written testimony is linked to below the video.