The special counsel investigation led by Robert Mueller, who headed the FBI for more than a decade, was given the authority to look into any links or coordination between the Russian government and Donald Trump’s 2016 presidential campaign.
Since the investigation began in May 2017, a lot has happened: 34 people and three companies — from Trump advisers to Russian nationals — have been indicted, resulting in seven guilty pleas, one conviction by trial, four incarcerations and four sentences.
There have been a lot of key players to keep track of as the investigation has unfolded over nearly two years. Below is a guide to help to do that as the inquiry has now come to an end.
Read the full timeline of Russia investigation.