Donald Trump was an unlikely presidential candidate, whose confidence was unbounded. He once boasted, " I could stand in the middle of Fifth Ave and shoot somebody and I wouldn't lose any voters." Now he's president, with a substantial base of supporters still behind him -- despite scandals, legislative failures and public comments that divide the nation. Overall support is declining, but few fellow Republicans have been willing to call him out — fearing a backlash from those hard-core devotees. That's political reality in the short run, but how long will it last? We'll look at the consequences for the GOP as the electorate is relentlessly changing.
Trump's base: Why isn’t it crumbling?
Ron Brownstein - Senior Editor, The Atlantic - @RonBrownstein, Christopher Borick - Muhlenberg College - @muhlenberg, Robert Jeffress - First Baptist Dallas - @robertjeffress, Sarah Posner - Nation Institute - @sarahposner