Here's a look at the key stories from the investigation, which are featured in the documentary. An action perhaps designed to neutralize the Russia investigation instead triggered a series of events that led to Mueller's appointment as special counsel. He denies knowing about any collusion with Russia, though Mueller's investigation continues to scrutinize his activities, with no clear end in sight. Manafort and co-defendant Rick Gates, his longtime business partner and deputy on the Trump campaign, go on trial this spring. Mueller's investigation has focused on examining the links between the Trump campaign and the Russian government, and his team has already secured two guilty pleas and another two indictments.

Source: CNN January 05, 2018 17:16 UTC