Washington Post: In a speech last night, embattled Senator Kay Hagan blasted GOP challenger Thom Tillis over his climate denialism, arguing that North Carolina “needs a Senator who believes climate change exists.” Hagan added: “Unlike my opponent who flatly denied the existence of climate change, I know the EPA’s ability to responsibly regulate greenhouse gas emissions is key to protecting our environment for future generations.” Today, however, Hagan called on the EPA to delay the introduction of pending new rules…