Here's a look at the key events since Mueller's appointment:Oct. 30, 2017: Starting at the topAfter months of silence and speculation, the boom is lowered for the first time and it involves former Trump campaign chairman Paul Manafort. Manafort and his deputy Rick Gates who face conspiracy and money laundering charges as a result of the probe. It is also revealed that a former Trump campaign adviser, George Papadopoulos, pleaded guilty in early October to lying to the FBI and is co-operating. Rick Gates, left, former campaign aide to U.S. President Donald Trump and Paul Manafort, Trump's former campaign manager. Mueller charges 13 individuals and three Russian companies with conspiracy to meddle in the election, including the Internet Research Agency (IRA).

Source: CBC News May 17, 2018 16:23 UTC