Biden administration's flip-flop on a border wall: "If you 'have' to build a border wall but you don't think that it's gonna work, then once it's done, are you just gonna tear it down?"
Mexican president: "You are the 1st president that has not built even 1 meter of wall. And we thank you for that." Biden: "We're trying to make it easier for people to get here - opening up the capacity to get here."