Corsi is an associate of GOP operative Roger Stone, whom Mueller is investigating for his links to WikiLeaks, which released emails stolen by Russian government hackers from Hillary Clinton's 2016 presidential campaign.
Jerome Corsi, an author who worked for right-wing website InfoWars, said he was questioned by investigators working for special counsel Robert Mueller and expects to be criminally charged with lying to them, which he denies.
The witnesses, many of whom have appeared before the grand jury impaneled by Mueller's team, have told ABC News they were asked about Stone's dealings during the 2016 election and what if any contact he may have had with Wikileaks founder Julian Assange through an intermediary, which Stone denies.
Former FBI Director Robert Mueller, the special counsel probing Russian interference in the 2016 election, departs Capitol Hill following a closed door meeting in Washington, June 21, 2017.
Mueller's investigation appears to be now focused on whether Trump's allies had ties to Wikileaks, the organization responsible for publicly releasing thousands of emails stolen from the Democratic National Committee by Russian hackers.
Talks between Manafort and Mueller's team have reportedly stalled.
Rudy Giuliani, a lawyer for Trump, did not immediately respond to a request for comment on Trump answering Mueller's questions as soon as this week.
Turkey 'patiently' waiting for Saudi insights into Khashoggi killing
The images are said to have been taken as the Saudis passed through security checks at the terminal when they left the country. They include the killing itself and conversations before the operation which Turkey subsequently uncovered, the sources said.
"I got served a subpoena on August 28th, at my home, two Federal Bureau of Investigation agents showed up unannounced, and I did not talk to the Federal Bureau of Investigation, of course my wife was pretty startled", he said on the video. "As of today, right now, I expect to be indicted".
"I'm going to be indicted", said Corsi.
"They asked about both Nigel and Ted Malloch, I can affirm that they did", Corsi told The Guardian on Tuesday.
Mueller and his team of prosecutors have indicted 32 individuals and three Russian businesses on charges ranging from computer hacking to obstruction of justice.
Jerome Corsi, coauthor of "Unfit For Command", speaks during a news conference at the National Press Club in Washington, D.C., October 14, 2004.
'To the best of my recollection, what I knew in advance about what Julian Assange was going to do in terms of having the Podesta emails, I figured out, ' he said.
The report comes less than a week after President Trump forced out his Attorney General Jeff Sessions and replaced him with his chief of staff, Matt Whitaker, a Trump loyalist who called the Mueller investigation a "witch hunt" and suggested it could be curtailed by starving it of funds.