Plenty of news coming out of Detroit as the UAW stand up strikes enter a 13th day. For one, former President Donald Trump will set foot in Michigan, following a historic visit by President Biden to the United Auto Workers (UAW) picket line. Then there are the battle lines drawn over how far federal battery tax credits will extend to automakers like Ford (F) who partner with Chinese tech firms. First up, the Biden/Trump courting of UAW members as they battle the Big Three. On Tuesday Biden met with UAW picketers at GM's Van Buren Township parts distribution center in…