A big question looming around Donald Trump is whether he knew about the June 2016 Trump Tower meeting attended by his son, son in law, campaign manager, as well as a whole gaggle of Russian connected folks. He has denied being involved at all, but there are signs that maybe he did know, even though he has tried to distance himself. The possible smoking gun: blocked phone numbers.

As we all know, Donald Trump does not use email or text. His communication is over phone only. But, reports are that Donald Trump's number comes up as "blocked." In fact, on June 6th, there were numerous calls between Don Jr, Agalarov and a blocked number. Now, we can't say conclusively that it was Donald Trump...but it is interesting.

So who else can confirm that Trump uses blocked numbers? None other than MSNBC's Katy Tur. In the above clip she actually talks about how he used to call her from a blocked number:

"I can tell you right, I've gotten phone calls from President* Trump and it comes from a blocked number."

I assure you that Mueller knows who Don Jr talked to, blocked number or not.