What did he expect? If the was any “there” there in the report it would have leaked out long ago.
That's what I always used to tell the libs in the comment section of various news sites, and their only come-back was "Mueller doesn't leak!"
We all knew this was how the investigation was going to end, but the clueless libs were clearly out there in la-la land, fantasizing about Trump, and his kids being frog-marched out of the White House. Can't wait for them all to start attacking Mueller for being "Trump's lap dog." It's going to happen.