As President Obama prepares to complete sweeping regulations aimed at tackling climate change, at least five Republican governors, including two presidential hopefuls, say they may refuse to carry out the rules in their states.
"We all bring our own filters to our world. There is nothing wrong with that, especially if we use an appreciation of each other's filters to understand how our complicated and sometimes clashing life experiences define the American idea."
Gwen Ifill is moderator and managing editor of "Washington Week" and co-anchor and managing editor of the "PBS NewsHour." The best-selling author of "The Breakthrough: Politics and Race in the Age of Obama," Gwen has covered seven presidential campaigns and moderated two vice presidential debates.