bush loins republican presidentia canada jeb bush at a rally in south carolina. live coverage beginning at six look p.m. eastern on c-span. >> this president's day, american history tv on c-span3 will feature special programs on the 1966 in all hearings, 50 years later. the hearings include testimony from witnesses who will pose for johnson's accidents in vietnam. it will first hear from george in an nbc news special report from february, 1966. then, retired general james gavin, followed by questions from senators, including jay williams fulbright. >> in korea we had learned that air and naval power alone could not win a war, and united ground forces cannot win when either. it was incredible to me that we had forgotten this bitter lesson so soon, that we were on the verge of making that same, tragic error. general, as far as you know, are in indochinans different today than they were? >> we will also hear from a special consultant to president johnson, general maxwell taylor, and dean rosk. for the complete weekend schedule, go to c-span.org. >> >> join c-span on