The gubernatorial candidate suggested skeptics "get some worms and have them creep out of your anus."
"Meet the moment with me," Dr. Scott Jensen told supporters in a video Friday.
The announcement comes as Kent faces criticism over the party's handling of recent allegations of sexual harassment by a former staffer.
He was involved in some of the state's highest-profile cases.
The Ham Lake Republican says she'll prioritize public safety, and criticized the state's handling of the pandemic.