When Christopher Steele was hired to compile his “dossier” on Donald Trump in 2016, he already had an extensive history of presenting private intelligence analysis to U.S. policymakers. The former British spy had for years been funneling reports on Russia and Ukraine to senior State Department Russia analysts. Materials recently turned over to Congress show that while Steele was giving memos to State he also maintained close ties to the billionaire Russian industrialist Oleg V. Deripaska. Some congressional investigators are thus concerned that his memos may have been a channel of Russian disinformation. Here’s how Steele got his work distributed...