They say x, ask for where they heard about x. They say from y news organization, ask the source for y. If they say z, if z is actually an actual document or otherwise, ask them where in z does y claim x is true.
If z is just another news organization, keep going until they provide (or don't provide) an actual document. If they can't procure an actual document, send it yourself. If z is just another video cIip, ask them for the whole video. Provide them the entire video if they can't.
Do not try to antagonize. Just simply ask the questions as if you were trying to understand their point of view, to learn something we might not have heard.
That’s how they debate with us. They want us to justify every jot and tittle — and then they find a technicality to dismiss it on: “But Tucker Carlson is a fascist!” SMH
The moment they realize they can't answer your question, they move the goalpost.
They do it not because they are smart, but precisely because they are stupid.