"A grand jury in April indicted 18 people in a "fake electors" scheme that sought to falsely declare Trump the winner in the crucial swing state instead of Joe Biden. Most pleaded not guilty in May to felony charges of fraud, forgery and conspiracy.

"I have no intention of breaking that case up. I have no intention of dropping that case," Mayes, a Democrat, told MSNBC's Ali Velshi.

"A grand jury in the state of Arizona decided that these individuals who engaged in an attempt to overthrow our democracy in 2020 should be held accountable, so we won't be cowed, we won't be intimidated."