President Donald Trump said some nice things about Greek Prime Minister Alexis Tsipras during a joint press conference on Tuesday — right before he learned Tsipras had once called Trump's ideas "evil."

“I wish I knew that before my speech," Trump joked, as everyone watching (I'm just assuming) let out little whimpers or affixed their mouths in tight smiles that said, "ha ha, yes, we are all laughing."

Here's the moment:

Tsipras responded to the question by saying he hadn't felt "threatened" during his meetings with the president. Which I guess is good. Sure. I mean that's the baseline now, right? As long as the president of the most powerful nation in the world doesn't hint at your obliteration during a bilateral meeting, you can consider it a win.

Anyway, before we go, I just want to ask one — or a few — more questions: How little research does the White House do for these meetings? Did no one do three minutes of googling beforehand? Did his aides just not want to tell Trump that the man he was about to meet thought his ideas represented "evil?" Do White House aides think it's a wise idea to keep that kind of thing from this president and just let him wing his response?

These are today's unanswerable questions, apparently.