1/ Here are some key events worth noting as they relate to Michael Flynn:

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June 2015
Flynn Promotes Joint US-Russia Nuclear Project in Mideast

Summer 2015
Trump Campaign Reaches Out to Flynn

December 2015
Flynn Receives Money From RT

January 2016
Flynn applies for a five-year renewal of his security clearance.

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February 2016
Flynn Denies Taking Money From Russia

March 2016
Investigators Issue Report on Flynn’s Security Clearance

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April to November 2016
Mike Flynn and other advisers to the Trump campaign have at least 18 phone calls and emails with Russian officials, including six contacts involving Russian Ambassador Sergey Kislyak.

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August 2016
Flynn’s Consulting Firm Lobbies for Turkish Interests

September 2016
Report that Flynn Discusses Kidnapping Muslim Cleric

September 2016
Flynn Meets With Rohrabacher

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November 2016
Flynn Publishes Op-Ed on Turkey

November 2016
Obama Warns Trump Not to Hire Flynn

November 2016
Flynn’s Lobbying Activities for Turkey Resurface

November 2016
Democrats Denounce Flynn in a Letter to Pence
Trump Names Flynn National Security Adviser

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November 2016
Trump’s Team Acknowledges Cummings’ Letter

November 2016
Flynn Tells Senior Trump Advisers He’s Scheduled Kislyak Meeting

8/

December 2016:
Kushner Suggests Using Russian Embassy as Safe Communication Channel, Russian Ambassador Sergey Kislyak visits Trump Tower to meet with Kushner and Trump’s national security adviser-designate Mike Flynn

9/

December 2016:

More Reporting that Flynn Reportedly Discusses Kidnapping Turkish Cleric

Bannon, Flynn and Kushner Meet Crown Prince of Abu Dhabi

Flynn Repeatedly Calls Kislyak

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January 2017
Flynn Tells McGahn He’s Under Investigation

Flynn Foils US-Kurdish Cooperation, a Longtime Goal for Turkey

Spicer Says Flynn’s Dec. 29 Conversation With Kislyak Was About ‘Logistical Information’

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January 2017 continued:
Pence Says Flynn’s Calls to Russian Ambassador Were Unrelated to Sanctions

Pence Denies Contacts Between Russia and the Trump Campaign

Flynn Sworn In as National Security Adviser

Spicer Denies Flynn Talked Sanctions With Kislyak

12/

January 2017 continued:
Flynn Denies Discussing Sanctions

President Trump Considers Lifting Sanctions on Russia

DOJ, Sally Yates Say Flynn Lied to Pence

DOJ Warns White House That Flynn Is Vulnerable to Blackmail

Trump to Comey: ‘I Need Loyalty’

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February 2017

Flynn Denies Discussing Sanctions With Kislyak

Flynn Can’t Remember If He Discussed Sanctions With Ambassador

Trump ‘Unaware’ of Flynn’s Sanctions Discussions

Flynn Resigns

Trump Hopes Comey Will ‘Let Flynn Go’

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February 2017 Continued:

Priebus Can’t Get the Story of Flynn’s Firing Straight

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March 2017
New York Times Reports on Undisclosed Meeting Between Kushner, Flynn and Russian Ambassador

Flynn Discloses Earnings From Turkish Company

Pence Says He Had No Idea About Flynn’s Lobbying in Turkey

Trump Fires US Attorney Preet Bharara and 45 Other US Attorneys

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March 2017 continued

Trump Says Adviser Brought in by Flynn Can Keep His Position

House Oversight Committee Requests Information About Flynn’s Foreign Lobbying Activities

Trump Asks Senior Intelligence Officials to Get Comey to Back Off

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March 2017 continued

Flynn Offers to Testify in Exchange for Immunity

Trump Calls Russia Investigation a ‘Witch Hunt’

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April 2017

White House Won’t Release Documents on Flynn’s Foreign Lobbying

Trump Reportedly Tells Flynn to ‘Stay Strong’

Senate Intelligence Committee Demands Records From Trump Campaign Advisers, Including Flynn

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May 2017

Trump Decides to Fire FBI Director Comey

Federal Grand Jury Issues Subpoenas to Flynn Associates

Pentagon Announces Plan to Fight ISIS Despite Turkey’s Objections

Senate Subpoenas Documents From Flynn

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May 2017 continued

Operative Who Searched for Clinton Emails Found Dead, about 10 days after an interview with The Wall Street Journal in which he claimed during the campaign to have connections to Trump adviser Mike Flynn

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May 2017 continued

Press Reports Comey Documented Conversations With Trump, including a contemporaneous memorandum documenting Trump’s Feb. 14 request to halt the Flynn investigation

Trump Denies Asking Comey to Back Down on Flynn Investigation

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May 2017 continued

Pence Questioned About Flynn’s Foreign Ties

Flynn Takes the Fifth

Subpoenas Issued to Flynn, Others

Administration Considers Returning Russian Intelligence Compounds

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June 2017

Mueller Takes Control of Flynn, Manafort Investigations

White House Lobbies Against Renewed Sanctions

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August 2017

Mueller Seeks White House Documents on Flynn and Turkey as Flynn Revises Disclosure Statement

Mueller Investigating Possible Flynn Connection to Clinton Email Project

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September 2017

House Democrats Refer Potential Flynn Misconduct to Mueller

Mueller Investigating Flynn’s Son

Mueller Seeking White House Documents on Flynn, Comey Firings

26/26

November 2017

NBC: Mueller Has Sufficient Evidence to Charge Flynn and His Son

Trump Won’t Pay Flynn’s or Manafort’s Legal Fees

Flynn Lawyers No Longer Sharing Information With Trump Lawyers

December 2017

Flynn Pleads Guilty to Making False Statements