Many historical US government publications are available through Google Books or the Hathi Trust. Some may only be available in snippet form.
HathiTrust allows download of complete PDFs of public-domain publications for MSU affiliates logged in with their MSU NetID.
As a biographical resource, American History in Video will include hundreds of profiles of great American leaders and personalities. As an encyclopedia of history, it provides footage of seminal historic events. Compare Kennedy’s rhetorical flair with Nixon’s. Examine racial stereotypes as presented in newsreels featuring African Americans prior to 1950. Consider Ed Herlihy’s use of alliteration and other tropes of propaganda in WW2 newsreels. These and thousands of other searches are easy with American History in Video.