“Under FBI and Justice Department guidelines for opening a full investigation, agents have to first establish an “articulable factual basis,” which means facts must be specified and verified. And investigators have to have a “reasonable suspicion,” as opposed to mere speculation, that a suspect committed a crime.  In a May 19, 2017, text message to McCabe’s counsel Lisa Page, Strzok remarked, “My gut sense and concern is there’s no big there, there” regarding collusion. Page also admitted during a private 2018 congressional interview that when McCabe opened the probes, “We still couldn’t answer the question [of whether Trump conspired with the Kremlin]. … It still existed in the scope of possibility that there would be literally nothing” to connect Trump with Russia.”

https://www.thegatewaypundit.com/2019/04/good-news-pelosi-schumer-demand-mueller-testify-here-is-the-list-of-100-times-mueller-gang-deviated-from-standard-practice-or-broke-the-law/