The Mueller Report

 https://opensourcemuellerreport.com/mueller-report-vol-1.html#x1-11000B.

https://opensourcemuellerreport.com/mueller-report-vol-2.html

"While the report concludes that the investigation "did not establish that members of the Trump campaign conspired or coordinated with the Russian government in its election interference activities",^[4][5][6] investigators had an incomplete picture of what happened due in part to some communications that were encrypted, deleted, or not saved, as well as testimony that was false, incomplete, or declined.^[7][8][9] The report states that Russian interference in the 2016 presidential election was illegal and occurred "in sweeping and systematic fashion",^[10][11][12] and was welcomed by the Trump campaign as it expected to benefit from such efforts.^[13][14][15] It also identified multiple links between Trump associates and Russian officials and spies,^[16] about which several persons connected to the campaign made false statements and obstructed investigations.^[4] Mueller later stated that his investigation's findings of Russian interference "deserves the attention of every American".^[17"

^{https://en.m.wikipedia.org/wiki/Mueller_report}