French presidential candidate Jean-Luc Melanchon:

Now, if Trump brings Putin to the G20, it seems to me that the first question we should ask is: why are you bringing him there? What do you expect from him?

Is there anything on the table? If there's nothing on the table, there's no point in him coming.

We would have already told him: start by withdrawing from Ukraine, and then we can, for example, before bringing him to the G20, explain what our conditions are.