Here's a timeline of Trump and his team's efforts to curtail the Russia investigation

REUTERS/Jonathan Ernst/Kevin Lamarque/File Photos

U.S. President Donald Trump (L) speaks in Ypilanti Township, Michigan March 15, 2017 and FBI Director James Comey testifies before a Senate Judiciary Committee hearing in Washington, D.C., May 3, 2017 in a combination of file photos.

Over the past year, indications that President Donald Trump may have obstructed or attempted to obstruct justice in the Russia investigation has steadily grown.

The recent news that Trump attempted to fire special counsel Robert Mueller sometime in June is but the latest in a steady stream of revelations since January of last year that suggest that the president sought to control - and often curtail - the scope and direction of the investigation.

The next few weeks may prove to be vital to Mueller's probe - the special counsel is looking to interview both Trump and his former chief strategist Steve Bannon about the details of former FBI director James Comey's firing in May and former White House chief strategist Michael Flynn's contacts within the administration.

Here's a timeline of actions Trump has taken so far, and their surrounding events, that his critics use to make the case he obstructed justice, along with incriminating events committed by those he reportedly sought to protect: