Cuban missile crisis
Your ability to rewrite history is amazing, although it does make me nostalgic to see a good case of Reagan Derangement Syndrome again. Ah, the good old days...
I didn't bring up Kennedy lightly. Kennedy made a secret deal with the Soviets to pull our own missiles out of Turkey to defuse the crisis. This was not revealed fully until 1989.
I'm sure a little research would come up with other examples of "under the table" deals by other presidents.
