We've seen this movie before.
Ford asked his secretary of state, "Supposing Ike, Kennedy, Johnson or Nixon were president, what would they have done?" Kissinger responded, "Kennedy would have ratted out. Nixon may have bombed, he was vicious in these things."
"How about Johnson?" asked Ford.
"He wouldn't have bugged out," replied Kissinger. "His advisers would have tried to bug out."
Then Ford took a shot at President Kennedy: "Without appearing to do so, Kennedy probably would have bugged out, with some famous statement that would have disguised it."
Kissinger told the president: "I must say it would be popular to say we have done enough….Give only humanitarian aid, negotiate with North Vietnam to take out those who want to go and say if the North won't agree, we'll do it by force."
"It goes against my grain," replied Ford.
"Mine too," said Kissinger.
"I don't feel I can do it," said Ford.
Kissinger then took charge. Referring to a planned presidential address to Congress, he said: "Then say in the speech you considered it and you don't know how we can withdraw aid from those who know the odds more than us and still want to go on fighting."
Kissinger knew, however, that the CIA had reported that some 150,000 South Vietnamese soldiers in the northern half of the country had been annihilated or simply disappeared since March 25, 1975, and that the North Vietnamese had captured more than $1 billion worth of equipment, including 400 airplanes and helicopters.
http://www.historynet.com/final-fiasco-the-fall-of-saigon.htm