Legally, collusion refers to when companies that are supposed to be competing in a free market instead work together to form an effective monopoly (to fix prices, blackball workers, etc.) It's really not the right term to be using here. I'm not sure we have a "right term" to use here, because it's so far outside the political norms that the most offensive part of the "crime" might not even be illegal. That being, people still generally agree that a political campaign should not communicate with and receive help from our "greatest geopolitical adversary."
If the question is whether Trump's campaign communicated with Russia, the answer is obviously "Yes, at every level and multiple times."
If the question is whether Russia helped Trump's campaign, the answer is obviously "Yes, in many different ways over months."
If the question is "Did Trump request that Russia help his campaign?" Then the answer is "Yes, even publicly."
Because the facts can't be changed, the conservative media is reshaping their viewers' opinions about the facts. The question isn't whether the president's campaign "colluded with Russia," but whether Republican identity politics are stronger than their disgust about it.