Mark Finchem said that the congressional subcommittee looking into the Jan. 6 incident as well as the US Department of Justice had both questioned him as a witness.
He has said that Donald Trump's victory in the presidential election was fraudulent on Thursday.
He provided little specifics regarding his interactions with congressional and federal investigators, other than to note that they took place a few months ago.
Finchem claimed that the results were "too many hypotheticals" for him to trust.
The public's sole scheduled opportunity to view the two contenders for secretary of state face-to-face was during the 30-minute debate.
On January 6, 2021, Finchem visited the US Capitol, but he avoided going onto the grounds.