that when he was asked about possibly re-entering the paris climate accord, caitlin, he said, something could happen, even though the white house had this huge announcement that we're pulling out of the paris climate accord, do you think the president could possibly come back to a position where, okay, maybe we'll renegotiate this or maybe we'll get back to this thing. >> as you and i both know, it would not be unusual for the president to change his mind. you're right, they had this huge celebration, there was a band, refreshments when they pulled out of the paris climate accord, and he's incredibly critical of it, tonight we didn't see any of that criticism. even though they both acknowledged on stage they had their differences about it, but he wasn't critical at all and left the floor open to put possibly reenter it. which left a lot of people confused because he's been so heavily critical of it in these past few weeks. >> in the end, do you think he's going to change on it? i mean, as he said to people, he did this for his base -- >> they said it was promise a he could keep. >> it was a promise he could keep. and could this be one much those things where donald trump just