Here's a useful compendium of "Fiona Facts."
"Trump's Top Russia Expert,Fiona Hill, Blasts Republicans For Their Damnably Destructive Conspiracy Theories"
https://paxonbothhouses.blogspot.com/2019/11/fiona-hill-blasts-republicans-for-their.html
Although Trump's top Russia expert, Fiona Hill, does not use the word "collude," she makes clear that by promoting Russia's false propaganda narratives (designed to fracture the United States by induced divisiveness), Trump and his lickspittles are collaborating with a hostile nation but caught up in the enrapture of cult-worship, they're too addled to realize what they're doing.