koo and patricia ewen to the ewen foundation. the corporation for public broadcasting and by contributions to your pbs station from viewers like you. thank you. once again, live from washington, moderator robert costa. robert: good evening. president frump's decision to exit the paris climate accord has sparked an international detective, in particular among allies, who would like the u.s., the world's second greatest carbon polluter to share the burden of reform by in his rose garden remarks, the president talked less about global warming and more about his america-first zenled agenda. president trump: i was elected to represent the citizens of pittsburgh, not paris. our withdrawal from the agreement represents a reassertion of america's sovereignty. we don't want other leaders and other countries laughing at us anymore and they won't be. robert: they may not be laughing anymore. they're paying attention. but you were born and ratesed in pittsburgh. you know the area and strip places like it. what's the economic and violate arl