Detroit Free PressObama to return to Warren next weekDetroit Free PressWASHINGTON — President Barack Obama will travel to Michigan on Wednesday to speak on the importance of investing in workers' skills and training at Macomb Community College in Warren, the site of his first-ever trip to Michigan as president six years ...Obama in Warren Wednesday to talk about jobsThe Detroit NewsPresident Obama to visit Michigan next week, talk jobs and economy at ...MLive.comPresident Obama scheduled to visit Michigan Sept.