The messenger was necessary, a useful idiot if you like.

You would still be considered no more than a useful idiot.

Now all you useful idiots are trying to push us into a war against a nation that poses no threat to us.

Against such a project, Napoleon was the dangerous but useful idiot of the oligarchs".

In the bird's-eye view of things, I am the useful idiot who brings food.

"I'm what they call a useful idiot," she said with a laugh.

Richard Murphy is very much what the Soviets call a "useful idiot".

But Tierlaw could have been set up, a useful idiot.

Because he is a useful idiot in the grander scheme of the leftist agenda.

What we have here is a paid up member of Putins heavies, or a useful idiot.