William R. Richardson: “A fence is not going to work. Fences have not worked. The Berlin Wall, the Great Wall of China. When people are…”

It's a positive sign, the fact that you had all the foreign ministers in one room, especially Ukraine and Russia, although Russia refused to talk directly with a Ukrainian.

Perhaps a vaguer statement that says tensions are less and the war is over, OK. Maybe. But not as a tradeoff unless there is substantial denuclearization.

If we delay and not try to fix these problems sooner than later and it gets into a Mexican election, we, the United States, lose leverage by delaying.

I think what the administration needs to do, first of all, yes, find a way to publicly state what we know. Get the facts, make sure that the facts are 100 percent.