Newman, a state Senator, touted his authorship of the photo identification constitutional amendment, which failed on the ballot in 2012.
A Republican hasn’t been elected A.G. since Douglas Head in 1966.
Democrats who control the Legislature faced a midnight deadline Tuesday that would suspend the state’s current system of online registration.
Two Republicans senators contend that the secretary of state is misinforming the public about the voting amendment and abusing his office.
They say the proposed voting amendment would put up too many obstacles for the homeless.
Sens. Scott Newman and Mike Parry claim the secretary of state has acted improperly as an elected official and is attempting to mislead voters about the measure.
The state Senate passed the GOP-backed measure 35 to 29 Wednesday afternoon, just hours after the House approved it on a party-line vote.
A provision to allow “equivalent” verification measures is a key disagreement.
Minnesota’s secretary of state’s office is worried about unintended consequences that could result from the proposed constitutional amendment.