Detroit’s police chief on Monday said he was retiring and is considering challenging Gov. Gretchen Whitmer in 2022. Police Chief James Craig, a Republican, said he will be stepping down on June 1. He described the decision as voluntary. “We saw what happened to many chiefs across this country. Some were forced out. Some retire because they didn’t feel supported. And some were fired. So I’m leaving in a good place. I love this city. And I love this state,” he told a press conference, thanking Mayor Mike Duggan, a Democrat, and other officials for supporting him. Duggan praised Craig, who he said “brought professionalism to the department.” Duggan is hiring a firm to conduct a search and provide him with a list of candidates to become the next chief. Craig became police chief in Detroit in 2013. He has headed departments in Portland, Maine, and Cincinnati, and worked for the …