(Mackinac Island, MI)  --  Political and business leaders will meet as the Detroit Regional Chamber Mackinac Policy Conference begins today.   Keynote speakers at the event include former U.S. Speaker of the House Newt Gingrich, CEO of Chrysler Group LLC Sergio Marchionne and the Secretary of the Department of Health and Human services Kathleen Sebelius.  Tomorrow, the 2010 Michigan gubernatorial candidates will take part in a debate.  On Friday, a panel discussion titled "The Big Four Moving the Region Forward" will feature Detroit Mayor Dave Bing, Wayne County Executive Robert Ficano, Oakland County Executive L. Brooks Patterson and chairman of the Macomb County Board of Commissioners Paul Gieleghem. 

-Metro Source