Which current and former Trump associates are being investigated? Here's what we know:
Vice President Pence
What we know: Pence hired a personal attorney to deal with the Russia investigation, his office confirmed to The Washington Post's Ashley Parker on June 15:
“I can confirm that the Vice President has retained Richard Cullen of McGuireWoods to assist him in responding to inquiries by the special counsel,” said Jarrod Agen, a Pence spokesman, in an emailed statement. “The Vice President is focused entirely on his duties and promoting the President’s agenda and looks forward to a swift conclusion of this matter.”
The key words there are, “to assist him in responding to inquiries by the special counsel.” There's no suggestion that Pence is personally under investigation here, but his lawyer confirms that special counsel Robert Mueller has made inquiries, presumably either for documents, or to question Pence in person.
Michael Cohen, President Trump's personal attorney
What we know: Cohen, like several other Trump aides, was first asked to turn over any documents he possesses related to contacts with Russian officials, and to testify in front of congressional committees. Then, on May 31, the House Intelligence Committee issued a subpoena to Cohen and his law firm, Michael D. Cohen and Associated PC, compelling Cohen
His name came up in a report published by BuzzFeed News in January, in which he was said to have traveled to Prague to meet with Russian officials. Cohen adamantly denied that he had ever been to Prague, and White House press secretary Sean Spicer expanded on that at a news conference:
Michael Cohen, who is said to have visited Prague in August and September, did not leave or enter the United States during this time. We asked him to produce his passport to confirm his whereabouts on the dates in question and there was no doubt that he was not in Prague.
In fact, Mr. Cohen has never been in Prague. A new report actually suggests that Michael Cohen was at — at the University of Southern California with his son at a baseball game. One report now suggested apparently it's another Michael Cohen.
What Cohen has turned over to investigators: So far, not much. Cohen confirmed to ABC News on May 30 that congressional investigators have asked him to turn over information, but said he wouldn't comply.
“I declined the invitation to participate, as the request was poorly phrased, overly broad and not capable of being answered,” he told ABC.
But that was before the subpoena. Cohen changed his tune on May 31.
“I have nothing to hide,” he told NBC. “I will make myself available and I am more than happy and willing to testify but they have to be specific.”
Michael Flynn, former national security adviser
Flynn seemingly had a cozy relationship with high-ranking Russian officials. He “collected almost $68,000 in fees from Russia-related entities in 2015,” the year before the election, per The Washington Post's Rosalind S. Helderman and Tom Hamburger. Most of that money came from a speech in Moscow at which Flynn was seated near Russian President Vladimir Putin.
On June 2, Reuters reported that special counsel Robert Mueller will expand his investigation to include Flynn's work as a lobbyist for a Turkish businessman, which he did while serving as an adviser on Trump's 2016 campaign.
What Flynn has turned over to investigators: Flynn offered to testify in exchange for immunity in March, but Congress didn't bite. Then, the Senate Intelligence Committee issued a subpoena in May, compelling Flynn to testify and turn over documents. He refused, saying he would invoke the Fifth Amendment.
After Flynn’s lawyers rejected the committee’s initial subpoena for personal records detailing any and all communications Flynn had with Russian officials, committee leaders turned to his businesses, arguing, in the words of Mark R. Warner (D-Va.), the panel’s vice chairman, that “a business does not have the right to take the Fifth.”
The narrowed request focuses more closely on documents that the committee thinks exist. But it is not clear if Flynn’s willingness to comply with the new subpoenas means the committee will be satisfied with the documents he turns over — or whether those documents will do anything to prove or disprove allegations that Flynn had improper contacts with Russian officials while acting as a surrogate for President-elect Trump.
The House Intelligence Committee issued its own subpoena to Flynn on May 31.
Jared Kushner, senior White House adviser
What we know: On May 19, The Post's Devlin Barrett and Matt Zapotosky reported that a senior White House official was a focus of the FBI's Russia investigation — separate from the various investigations being run by Congress.
What Kushner has turned over to investigators: “Mr. Kushner previously volunteered to share with Congress what he knows about these meetings. He will do the same if he is contacted in connection with any other inquiry,” Jamie Gorelick, one of Kushner's attorneys, told The Post.
Paul Manafort, former campaign manager
What we know: Manafort, one of Trump's three campaign managers during the 2016 election, has had close ties to Russia for a long time. He was an adviser to Viktor Yanukovych, a Putin ally who was president of Ukraine from 2010 until he was ousted in 2014. He also has business connections with Russian oligarchs.
What Manafort has turned over to investigators: Manafort's lawyer told The Post that he is following through on a commitment to provide information to investigators. From reporter Tom Hamburger's story:
Congressional staff have not fully reviewed the new Manafort documents, but people familiar with them said they include calendar entries, speech drafts and campaign strategy memos that mention Russia or individuals from Russia. They also cite some specific meetings, including two large group sessions that involved Russia’s ambassador to the United States — one at the Republican National Convention and the other at the Mayflower Hotel in Washington when Trump gave his first major foreign policy address.
Roger Stone, former adviser
What Stone has turned over to investigators: As far as we know, he hasn't been contacted by investigators — but that doesn't mean he doesn't want to be.
“I myself am very anxious to testify before the House and Senate committees in public,” Stone said on CNN in March. “I don’t need a subpoena, I don’t need immunity — I’m going to give them whatever documents they requested, although I believe I’ve been under surveillance so they probably already have them anyway.”
Michael Caputo, former campaign communications adviser
What we know: Caputo lived in Russia in the 1990s and later worked with Russian conglomerate Gazprom Media on a pro-Putin public relations campaign. He worked for the Trump campaign as an adviser during the New York primary, but resigned after tweeting, “Ding dong the witch is dead!” after Trump campaign manager Corey Lewandowski was fired in June.
What Caputo has turned over to investigators: Congressional investigators reportedly asked Caputo for documents from his time as a Trump campaign aide in 2016. He reportedly complied.
“The only time the President and I talked about Russia was in 2013, when he simply asked me in passing what it was like to live there in the context of a dinner conversation,” Caputo reportedly told the House Intelligence Committee in a May letter.
Carter Page, former foreign policy adviser
What we know: Page worked as an investment banker in Russia a decade ago. He also admitted to meeting with Kislyak in Cleveland during the Republican National Convention in July. The FBI obtained a special warrant to monitor him.
The Trump administration has disputed his role in the campaign, but Trump named Page as an adviser when he spoke with members of The Post's editorial board in March 2016.
What Page has turned over to investigators: Page, like Stone, has said on television that he's willing to testify to Congress, but hasn't yet.
Boris Epshteyn, former campaign adviser and assistant White House communications director
What we know: Epshteyn told the Associated Press on May 31 that he's been contacted by congressional committees and asked to turn over information. It's unclear whether he provided it.