Are Trump's Polls Improving?

Donald Trump has surprised pundits and pollsters alike with his unexpected success in this raucous election year. But are there more surprises in store? Just how accurately are pollsters measuring voter support for The Donald, and are his backers sometimes shy about admitting they like him?

Photo: Gage Skidmore

We get perspective from Ron Brownstein, editorial director of National Journal Group, columnist for the Los Angeles Times and a longtime student and number cruncher of American politics; and from Courtney Kennedy, director of survey research for the Pew Research Center.