A possible tipping point in how the EPA uses science

The E.P.A.'s Clean Air Scientific Advisory Committee begins a 2-day meeting to discuss the agency's science behind the particulate matter standard, but absent in the talks will be a large number of scientists that administrator Andrew Wheeler dismissed last year. Plus, an investigation into whether a Ukrainian natural gas oligarch funneled money into president Trump's campaign through Rudy Giuliani's associates. Also, the president delays an important announcement related to the Paris Climate Agreement. Find more on the show at politico.com/energy-podcast.