david gergen, take a listen to what vice president biden had to say today. >> no president has ever led by fear. not lincoln, not roosevelt, not kennedy, not reagan. this president is more like george wallace than george washington. >> more like george wallace than george washington. wallace, of course, a former governor of alabama, former democrat, he supported segregation, was a vocal opponent of the civil rights movement. is that fair? >> i frankly think it goes a little far. i don't think that donald trump is george wallace. i do think he plays upon the resentment and the anxieties of white americans and when he calls himself a nationalist, you can almost hear the preface or the prefatory word, white. because that's the message he's sending. we all know that. it is true that there are many, many americans who love this country, but the distinction that has been historically accepted about the difference -- there's a difference between patriotism and nationalism. this is something george or well wrote about in a book on nationalism, and patriotism is about love of country. patriotism is about being loyal to country. nationalism is about a search, an obsession with power, power for the c