I think it's also strange that Holmes would even ask what was said. Was he being nosy, or was he already clued into the idea that a trap was being set to catch Trump in some sort of trap set up by Vindman, and others?
This whole plot may be more organized than first thought.
That's an excellent point. I hope our guys and Elise are all over this.
Since the phone call was no doubt privileged, Holmes should be asked if Sondland shared the content with him.