"They haven't released a number yet," Fann, a Republican, said during in an interview with KTAR.
"However, we do know that those numbers do not match with Maricopa County at this point."
The Arizona Senate Democratic Caucus has pushed back against Fann's remarks, saying in a Twitter post, "This is a lie." The Epoch Times has reached out for additional comment.
According to Maricopa County's official canvass (pdf), there were 2,089,563 ballots cast in its 2020 general election.
Fann's remarks come as the ballots cast in Arizona's largest county in the 2020 election were set to be counted for a third time on orders from the state's Senate.
The ballots submitted in Maricopa County for the presidential contest were tabulated, as normal, by election officials. They were recounted by hand by audit teams hired by the state Senate in a process that was completed late last month.
The Senate was set to conduct its own recount, which will provide a number to compare with those from the county and from the auditors, and focuses on the number of ballots and not the actual votes, unlike the first two tabulations.
Fann previously told the Arizona Republic that the Senate would be using two counting machines that it purchased to complete the count.