https://www.thedailybeast.com/trump-campaign-staffers-pushed...
I'm not saying they knew what they were doing at the time, but the fact of the matter is: Trump Jr., Flynn, Kellyanne Conway all retweeted TEN_GOP, a Russian propaganda account, in the run up to the election varying number of times.
Re Trump himself echoing Russian Propaganda:
https://www.youtube.com/watch?v=bgkqW4cJOFQ
I imagine you will find issues with these sources, since they probably are disagreeable to you. To me, and I imagine to most unbiased readers, they are fairly clear evidence of the fact that Trump and his team did (perhaps unknowingly) spread stories that originated from Russian propaganda and disinformation efforts.