There is no way of knowing, he just said he is basing this on his sources.
When we see the White House Visitors Logs we will know if he is full of it.
Till then we will have to wait, I tried to pull them but the page is mysteriously missing all the information that we would need to verify his account.
I am merely pointing out that we do not “know” what happened based upon the video. The thread led off asserting that we “know” Trump based his tweets upon Comey.
I’m happy to speculate and infer and guesstimate as much as anyone here. I just like to keep clear on what we “know” for sure vs. what we believe, suspect, hope or fear might be true, etc.