Sen. Joni Ernst (R-Iowa) comically illustrated the overreach of the Environmental Protection Agency during an otherwise turbulent Senate hearing for President-elect Donald Trump's EPA nominee, Scott Pruitt, on Wednesday. "This is a chart of the state of Iowa," Ernst began, showing a nearly entirely red map of her state. "As you can see, with the expanded definition as provided by the EPA, 97 percent of the state of Iowa is now considered Waters of the U.S.