I'm sorry but what part was a lie? Russians did hack the DNC, sparing the RNC. They did coordinate with Trump associate Roger Stone in the distribution of the materials, and Stone informed Trump of this. Trump's campaign did meet with a Russian spy at Trump's residence to discuss a quid pro quo deal in which dirt on Clinton was exchanged for relaxed foreign relations, both of which did materialize from the respective parties. Trump did solicit help from Russian hackers to attack Hillary Clinton, an attack which did materialize according to investigators.
And to top it all off, Trump's campaign manager Paul Manafort, who was deep in debt to a Russian oligarch (Deripaska) yet working pro bono for Trump (a billionaire), was caught giving internal campaign polling data to a Russian intelligence officer (Kilimnik) working directly for Deripaska, which was then used to target the social media psyops campaign by the GRU.
This is exactly the collusion many said occurred during the 2016 election, and just because it took 5 years to prove doesn't mean we were wrong in 2016 when we pointed out what was obvious to us. Yes some took it too far and said Trump was a literal agent of Russia, but the effect is really the same agent or not - the Trump campaign was working hand-in-hand with Russia to get him elected over Clinton. They were coordinating in public and private, sharing data, making deals, and following through on those deals, and they all lied about all of it at every opportunity (establishes consciousness of guilt). Collusion.
These are all facts laid out in the Mueller Report Vol I [1], the Senate Intel report on Russian Active Measures (especially Vol V) [2], and the US Treasury Department [3]. Calling all of this a "lie" at this point feel like memory holing.
