He said "vitriol" and "partisan politics" were to blame.
Activists and Wright's family had requested Ellison's office handle the prosecution.
Potter is charged in the shooting death of Daunte Wright.
The resolution is named after Daunte Wright and Kobe Dimock-Heisler, who were both killed by police in Brooklyn Center.
Sgt. Paul Gorder was captured on video yelling at protesters in April.
The legislative session ends May 17.
The resolution includes sweeping changes to policing in the wake of Daunte Wright's death.
State health officials made the announcement Thursday.
Commissioners cited recent events in Brooklyn Center.
Her husband, a longtime corrections worker, has been placed on investigatory leave.
The man in the video is a longtime Minnesota Department of Corrections employee.
Her mother claims police involvement, but this has been denied by the Minnesota Bureau of Criminal Apprehension.
Wright was killed by a now-former Brooklyn Center police officer on April 11.
The Senate previously passed its omnibus public safety bill without police accountability legislation.
It's unclear just when troops and police will pull out of the Twin Cities.
The governor has asked the Legislature for emergency funding for the additional police.
Media outlets sent a letter to officials following a phone conference about the mistreatment of the press over the weekend.
Students at more than 100 schools plan to walk out Monday afternoon.
The Guard members were injured by shrapnel.
The congresswoman visited protesters Saturday night.
No arrests were made.
Doug Wardlow is running for MN attorney general.
No tear gas or any other crowd control munitions were used.
The military presence in the Twin Cities has been wearing on residents, but the decision to ask them to leave has been criticized by Gov. Tim Walz and GOP leaders.