We trace kennedy through all nine of his white house successors. >> which is really cool. political junkies love that. i like that a lot. anyway, go ahead. >> yeah, on the assassination, about a third of the book is the assassination. like everybody else who lived through it back in 1963, i've been obsessed with it. i wanted to make a contribution to the literature on it. i think we've been able to do that. here's what we did. as you know, there are two commissions that have investigated president kennedy's assassination. the first was the warren commission right after the assassination. i out...