From the final report of the January 6 committee:
In Arizona, a primary target of President Trump’s pressure, and ire, was House Speaker Russell “Rusty” Bowers, a longtime Republican who had served 17 years in the State legislature. Throughout November and December, Bowers spoke to President Trump, Giuliani, and members of Giuliani’slegal team, in person or on the phone. During these calls, President Trump and others alleged that the results in Arizona were affected by fraud and asked that Bowers consider replacing Presidential electors for Biden withelectors for President Trump.249 Bowers demanded proof for the claims of fraud, but never got it. At one point, after Bowers pressed Giuliani on the claims of fraud, Giuliani responded, “we’ve got lots of theories, we just don’t have the evidence.”250 Bowers explained to Giuliani: “You are askingme do something against my oath, and I will not break my oath.”251