dr. thomas sowell at stanford university and here's his most recent book, "intellectuals and race". this is booktv on c-span2. husk of the chief correspondent of the "washington post" has a new book out on the 2012 election, collision 2012. dan balz why do you so where coalition? >> guest: i thought this election was a collision between a lot of things that collision between the americas the america that elected president of bombing 2008 and the america that elected the republicans to take control of the house in 2010. there was a collision of philosophies, of ideology and really a collision between two quite different personalities and people in president obama governor romney. if you think about where each of them came from, they could have been more different. >> host: was there a point when the winner of the collision could have been? >> guest: well you can argue a year out the president was very vulnerable. in large part to cut as it was not clear what was going to happen with the economy. as we played out the election to things. one, think of presidents camp and was more skill