It has not been 100% corroborated that he knew or didn't. Or if indeed it all happened as reported.
However, Mr T, the WH and all the other sycophants changed their story already a few times, so, one can rather safely assume that the story happened pretty much exactly as reported.
Options in my view:
- He was briefed but he didn't listen properly because he doesn't like negative things about Russia
- It was given to him in the PDB but he simply didn't bother to read
- The Intelligence people knew it but didn't dare to tell him as he reportedly does not react well to negative news about Russia
- Or worst of all, he knew it all and did nothing.
he knows now...and still crickets On what the plan of action will be...
and funny no one except trump has commented about the reports...
also has anyone asked former chief of staff...Mick Mulvaney if he knew...