Oklahoma Attorney General Scott Pruitt sat before the Senate Environment and Public Works Committee on Wednesday for his confirmation hearing as President-elect Donald Trump's nominee for administrator of the Environmental Protection Agency. As Oklahoma's top litigator, Pruitt has sued the very agency he now seeks to lead several times, and during his hearing Wednesday he said he intends to use the EPA to regulate through "cooperative federalism." Some Republican senators questioning Pruitt echoed his view that the public distrusts the EPA due to overreach and over-regulation.