Former US president Donald Trump's efforts to persuade his then-vice-president Mike Pence to illegally delay the electoral count after the 2020 election will come under scrutiny at Friday's hearing into the January 6, 2021 insurrection.
This public hearing will take place in the early hours of the morning (Australian time) on Friday and will be the third of six or seven hearings after one was postponed on Wednesday.
Here's what to expect.
What's the focus of this hearing?
Liz Cheney — the vice-chair of the US House Select Committee to Investigate the January 6th Attack on the United States Capitol — says this hearing will examine Mr Trump's "relentless efforts" to pressure Mr Pence to refuse to count lawful electoral votes.
"President Trump had no factual basis for what he was doing, and he had been told it was illegal. Despite this, president Trump plotted with a lawyer named John Eastman to overturn the outcome of the election on January 6," Ms Cheney said.
"As a federal judge has indicated, this likely violated two federal criminal statutes."
The hearing will explore claims that Mr Eastman was working with Mr Trump to push the false fraud claims.
Mr Eastman repeatedly invoked his Fifth Amendment rights not to testify during his interview with the committee.
Ms Cheney also released a preview clip, which shows former White House lawyer Eric Herschmann telling the committee in a video interview that he had told Mr Eastman that he needed to "get a great effing criminal defence lawyer. You're gonna need it."
What was Mr Eastman's plan?
Two days before the Capitol attack, Mr Pence was summoned to the White House for an Oval Office meeting with Mr Trump and Mr Eastman to hear about the plan to turn back the electors.
With Mr Trump's false claims of election fraud, Mr Eastman had been circulating what was essentially an academic proposal challenging the workings of the 130-year-old Electoral Count Act that governs the process for tallying the election results in Congress.
The six-point plan was gaining momentum among Mr Trump's allies in Congress, including key senators and outside activists.
In a memo included in a court filing from the committee, Mr Eastman said such an unusual step was needed, falsely claiming: "This Election was stolen."
If Mr Pence would refuse to count some electors, then the threshold needed to certify the presidential election would drop from the regular 270-vote majority to a lesser number, one that Mr Trump could presumably reach.
If Democrats in Congress objected then, under current law, the House would be called on to decide the presidency.
In that scenario, because the House would vote by individual state congressional delegations, which were mostly majority Republican jurisdictions, the numbers would align for Mr Trump to win.
When is the hearing on?
This latest hearing will happen at 3am on Friday, Australian Eastern Standard Time (AEST), which is 1pm on Thursday in the US.
The committee live streams all of its hearings, and most major US TV news networks will be televising the hearings in full.
Fox News is the only one that isn't streaming any of the hearings.
Who are the witnesses?
A senior aide and a retired federal judge who advised Mr Pence are set to testify in this hearing.
Greg Jacob, who served as counsel to Mr Pence, and retired US Appeals Court Judge J. Michael Luttig, who was an informal adviser, are scheduled to testify.
In February of this year, Mr Pence said Mr Trump — under whom he served as vice-president for four years — was wrong to believe that Mr Pence had the power to reverse the outcome of the election.
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