Committee Vice Chair Liz Cheney, R-Wyo., was defeated in Wyoming’s GOP primary race this August against Trump-backed candidate Harriet Hageman.
Both Republican Illinois Rep. Adam Kinzinger and Democrat Rep. Stephanie Murphy of Florida announced did not seek reelection.
The remaining committee members face bids to keep their seats on Nov. 8.
Committee chair Bennie Thompson, D-Miss., faces GOP military veteran Brian Flowers, who won the Republican primary earlier this summer.
In Virginia, Democratic Rep. Elaine Luria is running against Navy veteran and Virginia state Sen. Jen Kiggans in Virginia’s 2nd Congressional District.
Democratic Rep. Jamie Raskin is running against republican Gregory Coll, a rocket scientist, to keep his seat in Maryland’s 8th Congressional District.
In California, Democrats Adam Schiff, Pete Aguilar and Zoe Lofgren are facing off against Republican primary winners to remain in office.
The committee is composed of nine members of the House — seven Democrats and two Republicans. House Speaker Nancy Pelosi, D-Calif., appointed each member.
Democratic Rep. Bennie Thompson of Mississippi serves as the committee chair. He previously worked on legislation to create a bipartisan commission to investigate Jan. 6, but it died in the Senate. Thompson, who also serves as chair of the Homeland Security Committee, sued Trump after Jan. 6 and accused the president of inciting the attack and conspiring with extremist groups.
Rep. Liz Cheney, R-Wyo., serves as the vice chair and is one of two Republicans on the committee. Cheney condemned Trump for his role in the attack and voted to impeach him, resulting in her being ousted from GOP leadership for criticizing the former president and those who remain loyal to him.
Illinois Rep. Adam Kinzinger serves as the other Republican on the committee. Kinzinger was one of 10 Republicans who voted to impeach Trump. He has condemned members of his own party and has been an outspoken member of the GOP.
Also on the committee are Democratic Reps. Jamie Raskin of Maryland and Adam Schiff of California, who both served as lead impeachment managers for Trump’s first and second impeachments.
Other Democrat House members include Stephanie Murphy of Florida who co-chairs the Blue Dog Coalition; Pete Aguilar of California, the only Latino representative on the committee; Zoe Lofgren of California, who was involved in prosecuting one of Trump’s impeachment trials and retired Navy commander Elaine Luria of Virginia.
The committee sought testimony from Wisconsin Assembly Speaker Robin Vos , specifically over a phone call Trump made to Vos asking to overturn the results of the election.
The committee expressed interest in speaking again with two Secret Service officials who protected Trump – Anthony Ornato and Robert Engel – after former Trump aide Cassidy Hutchinson’s testimony .
Neither have testified under oath. Cheney said the committee received 800,000 pages of communication from the Secret Service after committee members filed a subpoena in July for text messages reportedly deleted.
The committee also requested former House Speaker Newt Gingrich provide information related to Jan. 6.
More: Former Proud Boys leader pleads guilty to seditious conspiracy in Jan. 6 Capitol attack
Members of the committee interviewed additional witnesses since the last public hearing in July.
The committee heard from Ginni Thomas , the wife of Supreme Court Justice Clarence Thomas, on Sept. 29. She voluntarily agreed to appear before the committee and repeated claims the 2020 election was stolen during her testimony.
Thomas’s lawyer said she voiced concerns over election fraud, condemned the violence on Jan. 6 and answered the committee’s questions.
The committee also heard from Kelli Ward, the head of Arizona’s Republican Party, who declined to answer questions during her subpoenaed testimony, according to a government attorney. Ward was part of a group that cast fake electoral votes for Trump after he lost the state.
The Jan. 6 committee sought a log of her phone calls and text messages. A federal judge decided the committee was within its rights to subpoena Ward for the cell phone records.
The hearing will be at 1 p.m. ET .
USA TODAY will air it on its YouTube channel. C-SPAN will also air it, as well as TV networks such as CNN, CBS and MSNBC.
Hearing witness: Stephen Ayres, Capitol rioter who testified at Jan. 6 hearing, gets 2 years probation