In 1968 angry left-wing students were in the streets rioting. Johnson saw the writing on the Oval office wall - and quit. On national television, Johnson said 'I shall not seek, and I will not accept, the nomination of my party for another term as your President.'
Johnson left a legacy of debt, war, and the first great social welfare fiasco - the Great Society.
Obama didn't learn from Johnson's mistakes. So today Obama is lording over new records in poverty, debt, looming wars, scandals and an emerging left-wing discontent.
Obama's decline began just after he bullied through Obamacare. How many $100 million buck vacations he squeezes in before the scandals and failures squeeze him remains to be seen.