Thanks to reader MB-C for pointing out this Karen Tumulty interview with the president in Time magazine. Here’s the nausea-inducing end (Tumulty’s comments in bold):

Well, again, thank you very much.
Thank you so much.
I just so appreciate you doing this.
Well, I appreciate you. You’ve been doing a good job on the reporting on this.
Thank you so much.
It’s hard stuff and you’ve been very serious about it, so we appreciate it.