Timeline of investigations into Donald Trump and Russia (July–December 2018)

This is a timeline of major events in second half of 2018 related to the investigations into the many suspicious links between Trump associates and Russian officials and spies relating to the Russian interference in the 2016 United States elections.

It follows the timeline of Russian interference in the 2016 United States elections before and after July 2016 up until election day November 8, and the transition, the first and second halves of 2017, and the first half of 2018, but precedes that of the first and second halves of 2019, 2020, and 2021.

These events are related to, but distinct from, Russian interference in the 2018 United States elections.

Unclassified Summary of Initial Findings on 2017 Intelligence Community Assessment released by the Senate Select Committee on Intelligence
Grand Jury Indicts 12 Russian Intelligence Officers for Hacking Offenses Related to 2016 Election
Indictment of 12 Russian intelligence officers
Criminal complaint against Maria Butina
Affidavit supporting the criminal complaint against Maria Butina.
"Disinformation and ‘fake news’: Interim Report" by the Digital, Culture, Media and Sports Committee
Michael Cohen's plea agreement
Michael Cohen charging documents
Samuel Patten statement of the offense
Paul Manafort plea agreement
Paul Manafort statement of the offense and other acts
American Media Inc. Non-Prosecution Agreement
United States of America v. Elena Alekseevna Khusyaynova criminal complaint
Transcript of the House Judiciary and Oversight Committees joint interview of George Papadopoulos (redacted)
ICO report: Investigation into the use of data analytics in political campaigns
Jeff Sessions' resignation letter
Criminal Information document filed with Michael Cohen's November 29 plea agreement
Michael Flynn – sentencing memorandum
Michael Flynn – addendum to sentencing memorandum
Sentencing memorandum for Michael Cohen filed by federal prosecutors in the Southern District of New York (SDNY).
Transcript of Comey testimony before the House Judiciary and Oversight and Government Reform committees
Maria Butina statement of the offense.
Indictment of Bijan Kian and Kamil Ekim Alptekin unsealed on December 17, 2018.
The IRA, Social Media and Political Polarization in the United States, 2012-2018
The Tactics & Tropes of the Internet Research Agency
D.C. Circuit Court of Appeals ruling: the Foreign Sovereign Immunities Act does not protect a company owned by a foreign country from a grand jury subpoena.
Letter from the House Judiciary Committee majority to the Senate majority leader, acting attorney general, and the Department of Justice inspector general on the status of their investigation into the FBI's 2016 Russia investigation.