LANSING, Mich. (AP) — Michigan Governor Jennifer Granholm isn't switching her support quite yet to presumptive Democratic presidential nominee Barack Obama. Granholm and Lieutenant Governor John Cherry both endorsed New York Senator Hillary Rodham Clinton last October. They're among seven Michigan Democratic superdelegates who backed Clinton. Fifteen support Obama, with one more expected to endorse Friday. Granholm spokeswoman Liz Boyd said Thursday that, while the governor has made it clear she'll support the Democratic nominee, she won't make a formal statement supporting Obama until after Clinton announces a decision on her campaign. Clinton plans to hold an event in Washington...