President Biden swore to Michigan voters Friday that he was “OK” during a campaign stop in the crucial swing state — before misnaming a prominent Democratic congresswoman. “I promise you, I am – I’m OK,” the 81-year-old president told supporters at a Northville, Mich., restaurant before heading to a larger rally in Detroit, where he stumbled attempting to shout-out Rep. Debbie Dingell (D-Mich.). “Members of Congress – Debbie Haley,” Biden said, apparently referring to Dingell, a five-term congresswoman. “And by the way, I want you to know that I’ve spent a lot of time with Debbie,” he added. “She helped...