The National Archives and Records Administration, in partnership with the Presidential Primary Sources Project, is offering a webinar for secondary school (grades 6-12) educators on September 22 called “Presidential Powers and Precedents: What’s the Limit?” The 90-minute session is scheduled at 4 p.m. ET. Five case studies will examine the limits of presidential power. Participating are the Hoover, Truman, Carter, Reagan and Clinton libraries. Go here to sign up.