By April 19, 2019, The New York Times had documented that "Donald J. Trump and 18 of his associates had at least 140 contacts with Russian nationals and WikiLeaks, or their intermediaries, during the 2016 campaign and presidential transition."
Donnie Junior even admitted going to a Russian agent for "dirt on Hillary." Manafort was passing election polling data to Russians to use in social media targeting during the election season-and that's just to start!
https://www.nytimes.com/interactive/2019/01/26/us/politics/trump-contacts-russians-wikileaks.html