something no president has ever done beforech why president biden is headed to michigan. shutting the door at the federal agencies is stopping pay to military personnel. military personnel is yun kag ceiling the ma nip lalgt tay is total sflae manipulation. sara sidner with kate bolduan and john berman. this is cnn news central. happening now for the first time ever, at least the first time anyone can remember, a sitting president is about to join a picket line. president biden is on the way to michigan the join the auto workers on strike. he boarded air force one, and cnn learned that the union is going to gift the president, as you can see him on force and the uaw polo will be worn by him. former president donald trump will be speaking tomorrow night, instead of attending the republican debate. arlette saenz is traveling with president, and vanessa yurkevich is on the picket line. and first to you, vanessa. sfrermt and as the pro union president try to oomt full di