This article says
Carter: No Mideast peace without Hamas

Former President Jimmy Carter Thursday reiterated that there can be no peace between Israel and the Palestinians without involving Hamas.

And since Hamas won’t agree to peace unless Israel is destroyed, the next “logical” step would be to say there can’t be peace in the Mideast as long as Israel exists. I’m sure Carter believes this, but won’t quite come out and say it.
We shouldn’t let him back in the US.