NEW: Lyndon B. Johnson wanted to wage a war on poverty.
Instead, he waged a war halfway around the world in Vietnam.
That conflict defined him, his presidency, and the decade of the 1960s.
Historian @BillWhittle tells the story.
➡️ https://t.co/FUJodAs75I https://t.co/G4QGRzhfdy https://video.twimg.com/ext_tw_video/1837266141217181697/pu/vid/avc1/720x720/IZ1ia8629zFeAVLZ.mp4?tag=12