. >> most of the presidents, all of them have the speck tor of lynn don johnson hovering over them.of having to jet their domestic policy priorities because of an international situation. >> it's fascinating, pat. we'll open it up to everybody. politically, i may have disagreed with lbj, but he knew the house, the senate and domestic policy. somebody as wise as lynn don johnson, if he gets tripped up on vietnam, somebody like president obama who doesn't have that experience. >> you saw him talking about richard russell on the tapes. get involved in this thing. why did obama, with this knowledge and background triple his forces in afghanistan? joe biden and others saying don't do it. >> pat, a very simple reason. vietnam represented a lost war. obama comes into office with that legacy of republicans harping on any democratic president saying you lose the war, you lose the election. obama doesn't want to lose the election. he wants to go down as a great president. he triples the size in '09. at the end of the year, he faces that kind of decision, do you kick the can for down the road,