UNIVERSITY OF OREGON  — The National Guard was sleeping in the basement and wire barriers surrounded the Capitol Building when UO law professor Greg Dotson started working as the chief counsel for the U.S. Senate Committee on Environment and Public Works in early 2021. It was just after the Jan. 6 insurrection and the building was still closed to the public after the violent attack on Congress. Dotson was not new to the halls of Congress. He spent two decades working in the House of Representatives and served as the top energy and environmental staffer on the House Energy and Commerce Committee. But it was the most partisan environment he’d seen in all of his years on the Hill.