because in 2008, you and ross douthat published a book, and the book was entitled "grand new party: how republicans can win the working class and save the american dream." do you see echoes of your argument in this moment of conservative populism and the coalition that donald trump has assembled politically? >> i do. the argument we made in the book is that, over a very long period of time, the base of the republican party had changed, and what we saw happening is that the republican party became a more working-class party. it became a party rooted in different regions of the country than it had been in earlier eras, and as that changed, the ideology of the party's elite didn't really change with those changes in the base. >> were you arguing that the ideology of the party had changed or that the party was politically most successful when it was able to harness the enthusiasm and mobilize those voters? "those voters" being white, working-class voters, who you identified that, i think, if i understood your argument, the conservative movement had forgotten? >> it was a little bit of both.