ronedly regan sent forces into graen arda and others under an article 2 power. and george bush bill clinton and george w. bush viewed the war powers as a technicality rather than a requirement. congressional assent was asked for and received in the gull war, and the invasions of iraq and afghanistan, but failed to pass authorisation for the war in yugoslavia, and the u.s. fought it. for a look at long hist require of declaring and -- history of declaring and not declaring wore, we are joined by the chair of leadership and global affairs in austin and author of liberties surest guardian rebuilding nations after war from the founders to obama. let's go to the founders was there built into the constitution a tension between congress's article one powers and the president's article 2 powers. >> absolutely. the founding fathers wanted the president to go to congress and get the consent of american people before sending soldiers into armed way. >> was there meant to be a consolidation, were they trying to prevent a situation where the president takes the country to wa