position is clearly that after investing the lives of american troops, billions of dollars in aid and military equipment and so forth, that the u.s. has done all it can to help democratize, get rid of the taliban, open up society, bring women back into the educational system and so forth. on that level it has nothing to apologize for, that its actions are defensive but clearly the issue of what powers troops are allowed to have on the ground and what immunity they have has been an issue that haunts us everywhere we've been since world war ii. it was the critical issue that forced us really out of iraq. the iraqis didn't want us. we couldn't come to an agreement. it is the issue in iran that led to the revolution over the same issue. >> thank you both so much. great discussion. really appreciate it. coming up, could punching the button on the nuclear option in the senate have just launched a political cold war between democrats and republicans? we'll ask our political panel. and he's asking for forgiveness after getting caught buying cocaine but democrats are