The former president first told the lieutenants his vice-president, Mike Pence, was reluctant to go along with the plan to commandeer his largely ceremonial role at the joint session of Congress in a way that would allow Trump to retain the presidency for a second term.
The former president made several calls to the lieutenants at the Willard the night before 6 January. He phoned the lawyers and the non-lawyers separately, as Giuliani did not want non-lawyers to participate on legal calls and jeopardise attorney-client privilege.
The then acting attorney general, Jeff Rosen, and his predecessor, Bill Barr, who had both been appointed by Trump, had already determined there was no evidence of fraud sufficient to change the outcome of the 2020 election.
Trump was furious at Pence for refusing to do him a final favor when, in the critical moment underpinning the effort to reinstall Trump as president, he phoned lieutenants at the Willard sometime between the late evening on 5 January and the early hours of 6 January.
From the White House, Trump made several calls to lieutenants, including Giuliani, Eastman, Epshteyn and Bannon, who were huddled in suites complete with espresso machines and Cokes in a mini-fridge in the north-west corner of the hotel.
But on at least one of those calls, Trump also sought from the lawyers at the Willard ways to stop the joint session to ensure Biden would not be certified as president on 6 January, as part of a wider discussion about buying time to get states to send Trump electors.
The fallback that Trump and his lieutenants appeared to settle on was to cajole Republican members of Congress to raise enough objections so that even without Pence adjourning the joint session, the certification process would be delayed for states to send Trump slates.
The lead Trump lawyer at the Willard, Giuliani, appearing to follow that fallback plan, called at least one Republican senator later that same evening, asking him to help keep Congress adjourned and stall the joint session beyond 6 January.
In a voicemail recorded at about 7pm on 6 January, and reported by the Dispatch, Giuliani implored the Republican senator Tommy Tuberville to object to 10 states Biden won once Congress reconvened at 8pm, a process that would have concluded 15 hours later, close to 7 January.
Trump made several calls the day before the Capitol attack from both the White House residence, his preferred place to work, as well as the West Wing, but it was not certain from which location he phoned his top lieutenants at the Willard.
But even if Trump called his lieutenants from the West Wing, the select committee may not be able to fully uncover the extent of his involvement in the events of 6 January, unless House investigators secure testimony from individuals with knowledge of the calls.
House select committee investigators this month opened a new line of inquiry into activities at the Willard hotel, just across the street from the White House, issuing subpoenas to Eastman and the former New York police commissioner Bernard Kerik, an assistant to Giuliani.
