justice.gov/storage/report…
Mueller did not even address collusion.
Campaign in exchange for any sort of favorable treatment in the future. Based on the available information, the investigation did not establish such coordination." (p 66)
Mueller definitively did not reach a conclusion on the matter. Barr did -- and concluded there wasn't sufficient evidence to charge the president with obstruction, but Mueller did not.
public and private to encourage witnesses not to cooperate with the investigation."