That was NOT Mueller's conclusion. That was Bill Barr's politically motivated summary of the Mueller report. Mueller concluded there was contacts between Trump

That was NOT Mueller's conclusion. That was Bill Barr's politically motivated summary of the Mueller report. Mueller concluded there was contacts between Trump campaign and the Russians government but it wasn't enough evidence to successfully prosecute. The actual Mueller report says: >As explained in Section IV above, the Office’s investigation uncovered evidence of numerous links (i.e., contacts) between Trump Campaign officials and individuals having or claiming to have ties to the Russian government. The Office evaluated the contacts under several sets of federal laws, including conspiracy laws and statutes governing foreign agents who operate in the United States. After considering the available evidence, the Office did not pursue charges under these statutes against any of the individuals discussed in Section IV above—with the exception of FARA charges against Paul Manafort and Richard Gates based on their activities on behalf of Ukraine. >One of the interactions between the Trump Campaign and Russian-affiliated individuals—the June 9, 2016 meeting between high-ranking campaign officials and Russians promising derogatory information on Hillary Clinton—implicates an additional body of law: campaign finance statutes. Schemes involving the solicitation or receipt of assistance from foreign sources raise difficult statutory and constitutional questions. As explained below, the Office evaluated those questions in connection with the June 9 meeting [REDACTED]. The Office ultimately concluded that, even if the principal legal questions were resolved favorably to the government, a prosecution would encounter difficulties proving that Campaign officials or Investigative Technique individuals connected to the Campaign willfully violated the law. >Finally, although the evidence of contacts between Campaign officials and Russia affiliated individuals may not have been sufficient to establish or sustain criminal charges, several U.S. persons connected to the Campaign made false statements about those contacts and took other steps to obstruct the Office’s investigation and those of Congress. This Office has therefore charged some of those individuals with making false statements and obstructing justice.