President of Russia
Senior adviser, son-in-law
Attended the June 2016 Trump Tower meeting. Led the campaign’s digital outreach efforts, which have been a focus of Mueller’s team, given the extent of Russian activity online.
Former Trump appointee at USDAand campaign and White House adviser
Point of contact for the campaign’s foreign policy advisory team, including Page and Papadopoulos.
Stephen K. Bannon
Former campaign CEO and senior adviser
Helped lead the campaign in its last few months and was in the West Wing during the period when FBI Director James Comey was fired.
Former chief of staff
Ran the West Wing during the first few months of Trump’s presidency, including when Comey was fired. As head of the Republican National Committee during the campaign, he was privy to the party’s inner workings.
Helped draft the letter firing Comey.
Former campaign manager
Led the campaign until he was supplanted by Manafort.
Former campaign adviser
Had repeated interactions with Russia-linked individuals. Appears to have precipitated the entire investigation when he told an Australian diplomat in 2016 that he knew of compromising material the Russians had on Hillary Clinton.
Reportedly an unwitting source for the Steele dossier. Worked to gain access to the Trump campaign through Papadopoulos.
Founder of the private security company Blackwater
Met in January 2017 with a Russian official close to Putin. Prince described it as a chance encounter, but a witness cooperating with Mueller has said the meeting was planned to help establish a backchannel to the Kremlin.
Senior official at a Russian government-funded think tank
Contact of Papadopoulos, with contacts in the Russian Ministry of Foreign Affairs. Tried with Papadopoulos to arrange a meeting between Trump and Putin during the campaign.
Russian foreign minister
Met with Trump in the Oval Office the day after Comey’s firing. During the meeting. Trump revealed highly classified information that, according to U.S. officials, jeopardized a critical source of intelligence on the Islamic State.
Former deputy national security adviser
A close ally of Flynn. First told investigators she never spoke with Flynn about a discussion Flynn had with the Russian ambassador about sanctions during the transition. She revised her statement after Flynn’s guilty plea contradicted her initial claim.
Russian political operative
His meeting with Manafort and Gates at Manhattan’s Grand Havana Room on Aug. 2, 2016, is a fulcrum of the investigation. Prosecutors believe the men exchanged information, including internal polling data, then left through separate exits.
Alex van der Zwaan
Son-in-law of a prominent Russian-based banker and the first person sentenced in the Mueller probe, he received a 30-day sentence for lying to the FBI about his contacts with Gates.
Former campaign chairman
Extensive Russian ties and questionable financial activity came to light even before the campaign ended. He was convicted of bank and tax fraud in August and pleaded guilty in September to conspiring to defraud the United States and obstruct justice. U.S. District Judge Amy Berman Jackson said this month that Manafort lied to prosecutors after agreeing to cooperate.
Former campaign staffer
A longtime ally of Manafort who joined him on the campaign. Was indicted with Manafort on bank and tax fraud charges, but pleaded guilty and testified against Manafort.
Onetime Manafort business partner. Investigators say that, through Kilimnik, Manafort offered to give Deripaska “private briefings” on the campaign.
Vice President Pence
Pence was lied to by Flynn during the transition process, when Flynn denied he had discussions with the Russian ambassador about sanctions relief. Flynn was forced to resign just 24 days into his tenure as national security adviser.
Former national security adviser
The highest-ranking Trump aide to plead guilty as part of the investigation. Mueller argued that Flynn should receive no prison time because of his substantial assistance in the investigation. U.S. District Judge Emmet G. Sullivan delayed sentencing, which suggests Flynn may still go to prison.
Aras and Emin Agalarov
Russian father-and-son billionaires
Aras (left) and Emin (right) financed Trump’s Miss Universe pageant in Moscow in 2013, then requested the 2016 sit-down at Trump Tower. Phone records provided to Congress show that Trump Jr. and Emin spoke briefly three days later.
Russian agent and gun rights activist
The first Russian national convicted of seeking to influence U.S. policy in the run-up to the 2016 election by acting as a foreign agent. Butina admitted to working with an American political operative to forge connections with the National Rifle Association and conservative leaders and candidates.
Former Russian government official
Putin ally supervised Butina’s activities and became a regular at NRA events, meeting with Trump Jr. at an event in Louisville.
One of Russia’s richest men and part of Putin’s inner circle. Gave Cohen a reported half-million dollars after the election.
California man who pleaded guilty to identity theft. Prosecutors said Pinedo significantly aided the investigation by linking anonymous Internet activity to charged Russians.
Internet Research Agency
Russian state-sponsored “troll factory” based in St. Petersburg. It was named in a February 2018 indictment as the hub of an ambitious effort to trick Americans into following and promoting Russian-fed propaganda online.
Republican political operative
Mueller has charged that Stone, a longtime Trump ally, sought to gather information about hacked Democratic Party emails at the direction of an unidentified senior campaign official and engaged in extensive efforts to hide the details of his actions.
During the campaign, Stone claimed that he was in contact with Assange. Since then, Stone has emphatically denied any communication with Assange or advance knowledge of WikiLeaks document dumps.
Social media consultant
Stone associates whom Mueller has questioned about a potential WikiLeaks connection.
According to a Mueller indictment, the online persona was operated by a dozen Russian military intelligence officers conspiring to hack Democrats.
Says she had an affair with Trump a decade ago. Trump lawyer and fixer Cohen came under federal investigation over a $130,000 payment he made to Daniels during the 2016 campaign to keep her silent. Cohen pleaded guilty and agreed to work with the Mueller investigation. Daniels is suing Trump to void a nondisclosure agreement about her claims. She also sued him for defamation, but a federal judge dismissed that case.
Told a federal judge that Trump was pursuing a deal to build a Trump Tower in Moscow throughout the first half of 2016 — as the candidate was stepping onto the world stage as a political figure and breaking with the GOP by praising Russia and Putin, whose help Cohen sought for the project.
The point person for the 2016 Trump Tower Moscow project. Sater suggested to Cohen that they give a $50 million penthouse to Putin as a way to market the tower: “If we have Putin in the penthouse every oligarch in Russia would want to live in that building.”
British music publicist
Set up the 2016 Trump Tower meeting, promising incriminating information about Clinton as part of a Russian effort to help the Trump campaign.
Former campaign adviser
Page was under surveillance by the FBI for his contacts with Russian actors beginning in October 2016.
Former Russian ambassador
Donald Trump Jr.
Attended the June 2016 Trump Tower meeting.
U.S.-based employee of Aras Agalarov’s company
Attended the June 2016 Trump Tower meeting on behalf of Aras and Emin Agalarov.
Attended the June 2016 Trump Tower meeting. Said she was there to persuade the Trump campaign to oppose the Magnitsky Act, which imposed sanctions on Russia.