Jason Burnett, a former Environmental Protection Agency official, told the Senate’s Environment and Public Works committee that the White House pressured the EPA in 2007 to deny climate regulation that would have required a reduction in greenhouse gas emissions from cars in California. Burnett’s testimony contradicts earlier statements from EPA chief Stephen Johnson, who said the denial was solely his decision. Guest: Jason Burnett, former Associate Deputy Administrator for the EPA where he was in charge of climate change and energy policy.