Kids are back in school, adults are back at work, and the multiple investigations into collusion between associates of Donald Trump and Russian officials during the 2016 campaign are once again in full swing. The Associated Press has a helpful breakdown of the state-of-play.

Two congressional committees, and of course the legal SWAT team assembled by Justice Department Special Counsel Robert Mueller, will have a lot more to chew on after new details emerged in a few key areas: that meeting between Donald Trump, Jr., Jared Kushner, and Paul Manafort and a Kremlin-connected lawyer; a newly uncovered business deal to build a Trump Tower Moscow (on which Trump Organization lawyer Michael Cohen tried to coordinate with Vladimir Putin's press secretary); and the firing of FBI Director James Comey, including a letter Trump crafted to justify the move, which Mueller now has his hands on.

With all that under consideration, the committees and Mueller will demand the testimony of a number of Trump family members, campaign staffers, business associates, and other less well-defined denizens of Trumpworld. Here, based on the AP report, is a list of Trump associates who will be called as witnesses, subpoenaed, or otherwise interviewed this fall:

Donald Trump, Jr., the president's son, who "will meet privately in the coming weeks with staffers on the Senate judiciary and intelligence committees." Senate Judiciary Chairman Charles Grassley has said he wants Junior to testify publicly at some point.

Michael Cohen, a longtime lawyer for the Trump Organization whose role in the Moscow deal was detailed above.

Michael Flynn, Michael Cohen, and Rick Perry (the last of whom is not involved in the Russia probe). Getty Images

Roger Stone, a legendary political scoundrel and longtime informal Trump adviser who seemed to know an awful lot about the leaks of hacked emails from the Democratic National Committee and Hillary Clinton's campaign.

Felix Sater, a Russian-born business associate involved in the prospective Trump Tower Moscow deal.

Paul Manafort, the former Trump campaign chairman whose ties (particularly of the financial variety) to Kremlin-linked officials, namely in the Ukraine, continue to deepen. The FBI raided Manafort's home in July seeking tax and international banking records. Judiciary Chairman Grassley also wants Manafort to testify publicly.

Getty Images

Michael Flynn, the former White House national security adviser who was dismissed after he lied about a call with Russian Ambassador Sergey Kislyak in which he discussed lifting U.S. sanctions on Russia. A longstanding probe into Flynn's company, Flynn Intel Group, and its dealings with figures in Turkey has been incorporated into Mueller's probe.

Bijan Kian, a business partner of Flynn who served on Trump's presidential transition team.

While this list likely isn't exhaustive, it will be exhausting for the president, whose ire has been piqued whenever news emerges that Special Counsel Robert Mueller is examining his business dealings and family. Time will tell why exactly that is.

Jack Holmes Politics Editor Jack Holmes is the Politics Editor at Esquire, where he writes daily and edits the Politics Blog with Charles P Pierce.

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