Timeline of investigations into Donald Trump and Russia (January–June 2019)

This is a timeline of events in the first half of 2019 related to 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, both before and after July 2016, until November 8, 2016 (election day), the transition, the first and second halves of 2017, the first and second halves of 2018, and followed by the second half of 2019, 2020, and 2021.

These events are related to, but distinct from, Russian interference in the 2020 United States elections.

D.C. District Court of Appeals decision against a "Corporation" from "Country A"
Trump states on January 14, 2019, "I never worked for Russia and you know that answer better than anybody. I never worked for Russia. Not only did I never work for Russia I think it's a disgrace that you even asked that question."
FBI special agent Jeffrey Weiland's statement on Manafort's breach of his plea agreement.
Skadden, Arps, Slate Meagher & Flom settlement agreement
Roger Stone indictment for one count of obstruction of an official proceeding, five counts of false statements, and one count of witness tampering
The D.C. Circuit Court of Appeals ruling that Mueller was legally appointed
Michael Cohen search warrants
Letter from U.S. Attorney General William Barr announcing his receipt of the Mueller Report
Letter from Attorney General William P. Barr on March 24, 2019, to leaders of the House and Senate judiciary committees with the summary of the investigation.
Letter from Robert Mueller III to William P. Barr objecting to Barr's characterization of the conclusions of the Mueller Report.
Letter from Attorney General William P. Barr on March 29 to the chairs of the House and Senate Judiciary Committees
Court order keeping name of company secret while grand jury is active
Gregory Craig indictment
Letter from Richard Neal to Charles Rettig demanding Trump's tax returns by April 23
Report on the Investigation Into Russian Interference in the 2016 Presidential Election (2019) — initial release with redactions by Barr
Secretary Mnuchin's response to Chairman Neal regarding the production of Trump's tax returns
Secretary Mnuchin Response to Chairman Neal in which he refuses to release Trump's tax returns to Congress