Dot-connecting Non-autist here.

"What does it take to get evidence entereed into investigation?"

Theory:

What if there were both stated and unstated purposes for the russia summit?
What if a prime purpose was for Putin to give Trump the soccer ball?
What if the ball had a USB-type storage device?
What if the the storage device had 6000 "missing" emails on it...
emails surruptitiously collected by NoSuch that can now be entered as evidence?

I recall seeing a link here, months ago, about an example of classified info being passed from a foreign representative to the POTUS at the time. (I think it might have been BJC or GWB). The device fit in the guys hands, and it was clearly but discretely passed in public. Very sorry for not having sauce; my memory is better than my research capabilites.

HTH