Get reading then. There's strong enough evidence of obstruction of justice that Mueller had to open that section by reiterating the Department of Justice standing interpretation of the constitutional law issues involved that a sitting president could not be indicted, so instead he was merely presenting the facts and referring the matter to Congress. He all but said "If I could indict the president, I would." On the subject with coordination with Russia, he documented a large number of suspicious contacts and actions both Trump and the Russians took that would benefit the other, but had no "smoking gun" evidence of an agreement between the two parties, meaning at the end of the day there was plenty of evidence, but not enough to substantiate charging the President with a crime because he wasn't able to prove criminal intent. The irony is, nothing in the report was actually really all that new, since most of it had already been reported on by the so called "fake news liberal media." Had Barr not set the bar so low with his memo which strongly implied there was no evidence at all of coordination with Russia, and unclear evidence of obstruction of justice, the release of even the redacted report wouldn't have been the bombshell Barr turned it into. As it is, because Trump fired Sessions several months before the end of the investigation and put Barr in his place, his removing Sessions is arguably an 11th count of obstruction of justice. And, given the jarring disconnects between Mueller's conclusions and Barr's not-summary of those conclusions, Barr is in legal jeopardy himself.