Paul Manafort chaired the Trump campaign pro bono, so to speak, while quickly running out of liquidity after two Ukrainian oligarchs he worked with stopped sending him regular payments.

House investigators are asking about Manafort and his protege Rick Gates’s contacts with those oligarchs during the campaign, as well as with Konstantin Kilimnik, a Ukraine-based Russian political consultant who the FBI alleges is a Russian intelligence asset.

House investigators are interested in the following witnesses and entities:

-Cambridge Analytica CEO Alexander Nix

-Translator for the June 2016 Trump Tower meeting Anatoli Samochornov

-Private equity executive and cousin of Russian oligarch Viktor Vekselberg Andrew Intrater

-Brad Parscale, digital media director for Trump’s 2016 campaign, vendor to the Trump Inaugural Committee

-Brittany Kaiser, director at Cambridge Analytica during the 2016 election

-Cambridge Analytica, a UK-based political consulting firm

-Carter Page, Trump campaign foreign policy adviser

-Venture capitalist, Deripaska-linked Christopher Bancroft Burnham

-Columbus Nova, Intrater’s company that signed a $1 million contract with Michael Cohen

-DOJ

-Donald Trump Jr., presidential son and Trump Org executive

-Eric Trump, son of the president and Trump Org executive

-Former Blackwater CEO Erik Prince

-FBI

-Trump Moscow Tower planner, Trump SoHo associate Felix Sater

-Flynn Intel Group

-Frontier Services Group, Erik Prince’s company

-General Services Administration

-George Nader, Middle Eastern fixer with links to the United Arab Emirates who is cooperating with the special counsel probe

-Trump Transition

-George Papadopoulos, former Trump 2016 adviser who pleaded guilty to lying to the FBI

-Hope Hicks, former Trump campaign press secretary and White House communications adviser

-Trump Org

-Irakly Kaveladze, Russian-American real estate developer who attended June 2016 Trump Tower meeting

-J.D. Gordon, Trump 2016 national security adviser

-Trump campaign

-Jared Kushner, Trump’s son-in-law and White House adviser

-Tony Fabrizio, Republican pollster and strategist questioned by Mueller about polling data Manafort shared with pro-Kremlin individuals during the 2016 campaign

-Manafort spokesman Jason Maloni

-Jeff Sessions, former attorney general

-Cambridge Analytica CEO Julian David Wheatland

-Kushner companies

-Matt Tait, cybersecurity expert contacted by Peter Smith to obtain Clinton emails

-Michael Caputo, GOP operative

-Steve Bannon, former Trump 2016 CEO and White House chief strategist. Ex-vice-president of the board of Cambridge Analytica

-Michael Cohen, former personal attorney and fixer for President Trump

-Michael Flynn, former Trump campaign adviser and U.S. national security adviser

-SCL Group Limited, parent company of Cambridge Analytica

-Michael Flynn Jr., Flynn’s son and an aide on the 2016 campaign

-The White House

-Paul Erickson, Republican strategist who helped connect ex-girlfriend and admitted Russian agent Maria Butina to NRA and GOP bigwigs

-Sam Nunberg, Trump 2016 campaign adviser

-Paul Manafort, former Trump campaign chairman awaiting sentencing for tax and bank fraud

-Reince Priebus, former RNC chairman and White House chief of staff

-Roger Stone, GOP “dirty trickster” indicted for lying about his efforts to obtain Clinton’s emails from WikiLeaks and for interfering with witnesses

-Rhona Graff, Trump’s longtime personal assistant at the Trump Organization

-Sean Spicer, ex-White House Press Secretary and Trump administration communications director

-Rob Goldstone, British music publicist who helped broker the Trump Tower summit between Kremlin-linked Russian attorney and Trump campaign officials

-Rick Gates, former Manafort deputy, ex-Trump campaign and transition adviser, now a cooperating witness in the special counsel probe

-Rinat Akhmetshin, Russian-American lobbyist who attended the June 2016 Trump Tower meeting