Today the White House served as a stage for a reality TV-lover's dream, as Kanye West sat down with Donald Trump in an open-press meeting that involved a series of long and incoherent ramblings. How did we get here — to a world of extreme and unbending partisan divide in politics?

Jim Braude was joined by NBC national political correspondent Steve Kornacki to discuss his new book, "The Red And The Blue: The 1990s And The Birth Of Political Tribalism."