Trump: " the whole Russia thing is a ruse"

[SummerSnow]

Translation- It's the wizard of oz " Don't pay attention to the man behind the curtain"

Then he gives up, 'cause he knows his trick has been seen through and there's nothing that can fix it.

In other words, he wanted everyone to keep being impressed by the big flashy magic show, and ignore that they might have found out how the trick really works.

On the other hand, you could use that phrase to mean that the jig is up. You figured out that the magic is just smoke and mirrors? Well, maybe I'll tell you to pay no attention to the man behind the curtain, even though I know I can't really hide the truth from you any longer.