Calvin Coolidge actually said...

"I have to keep my mind open about those things until the proposal comes to me."

"It is always rather embarrassing for me to discuss legislation that is pending, about which there is a controversy in the Congress."

"Nobody knows what the bill may contain when it gets here, so that I have to wait and see."

"I can't very well announce beforehand that I am going to veto a bill, or that I am going to sign it."