the standard by which an established legal position progresses from "categorically false" to "I don't know" in fewer than 48 hours.
Giuliani Flop, 20 Jan 2018:
“Any suggestion — from any source — that the President counseled Michael Cohen to lie is categorically false. Michael Cohen is a convicted criminal and a liar,” Giuliani said in a statement Friday.
“I don’t know if it happened or it didn’t happen... I have no knowledge if he spoke to him.” Then a beat later, he adds that if they did discuss it, “so what?,” Giuliani said Sunday on CNN.