LANSING, Mich. (AP) — Hillary Rodham Clinton's campaign accused Barack Obama on Tuesday of standing in the way of a second presidential primary in Michigan, as several state lawmakers expressed concerns over suggested rules governing any revote. Aides said the former first lady would make a hastily arranged appearance in Detroit on Wednesday to make the argument for going ahead despite the obstacles. Mo Elleithee, a spokesman, said Clinton would "make the case for counting the people of Michigan, that every vote must count and that Senator Obama is standing in the way of a revote, and that snubbing Michigan...