You may insist that Rubio said something about the report is an official source but his words are contradicted by the report itself.
But ok I'll concede your following point that relies on "collusion" and "government" : the report didn't find "evidence that then-candidate Donald Trump or his campaign colluded with the Russian government to meddle in the 2016 election."
You are not addressing the central point of the SIC volume 5 report: Trump and his campaign engaged in criminal and unethical activity with Russian ex-spies, agents run by Russia and oligarchs.