He was chosen as a Republican Senate floor leader in 2012, working to advance the agenda of Governor Nathan Deal, a close political ally.
[1] After Joe Biden won the 2020 presidential election in Georgia and Donald Trump refused to concede while falsely claiming fraud, Miller requested a performance review of the top election official in Fulton County, despite no legitimate questions about the accuracy of results.
[4] In March 2021, during the state legislative session, Lieutenant Governor Geoff Duncan refused to call to the floor Senate Bill 202, an overhaul of Georgia election law introduced as part of Republican efforts to restrict voting following the 2020 presidential election.
[5][6] Miller sponsored SB 202, which limited vote-by-mail, restricted access to ballot drop boxes, and reduced the timeline for runoff elections.
[6] In an internal leadership election in 2020 among state Senate Republicans, Miller defeated Burt Jones.
[12] Miller enjoyed strong support from business interests, receiving $2 million in campaign contributions in the first five weeks after he announced.