Prior to joining the firm, Matt served as minority chief counsel for the U.S. Senate Energy and Natural Resources Committee. He managed the legal, policy, and communications teams which developed and implemented the strategic plan of the committee agenda. Before this, Matt had served as minority chief counsel for the U.S. Senate Environment and Public Works Committee.

In both of these jobs, Matt was responsible for overseeing committee staff, preparing for hearings, coordinating media strategies, and participating in the regulatory process. He provided legal counsel, advice, and legislative solutions to the Ranking Member and Chairman of the respective committees, Wyoming Senator John Barrasso, members of the committees, Senate Republican leadership, and other Senate offices. He directed committee hearings and Senate consideration of more than 65 presidential nominations in the energy, environment, natural resources, and transportation space. Matt also ensured compliance with Senate, committee, and Republican conference rules. He devised rules-based strategies to pass legislation, process nominees, defend committee jurisdiction, and advocate before the Senate Parliamentarian. Additionally, he managed oversight and investigation activities, while also serving in an official role at committee business meetings.