Emily Bazelon, David Plotz, and John Dickerson discuss Seymour Hersh's conspiratorial counter-narrative of the killing of Osama bin Laden, the status of the Trans-Pacific Partnership trade agreement, and Jeb Bush's retrospective view of the Iraq War.   The Slate Political Gabfest is sponsored by Stamps.com. Buy and print official U.S. postage using your own computer and printer, and save up to 80% compared to a postage meter. Sign up for a no-risk trial and a $110 bonus offer when you visit Stamps.com and use the promo code GABFEST.     Harry's, the shaving company that offers German-engineered blades, well-designed handles, and shipping right to your door. Visit Harrys.com for $5 off your first purchase with the promo code “POLITICAL".     And by the University of California, committed to advancing our world through discovery. Learn more at universityofcalifornia.edu. "The University of California—The power of public."     Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at www.slate.com/gabfestplus.     Twitter: @SlateGabfest Facebook: facebook.com/Gabfest Email: gabfest@slate.com Show notes at slate.com/gabfest Learn more about your ad choices. Visit megaphone.fm/adchoices