ANN ARBOR, Mich. (AP) - President Barack Obama plans to visit Michigan on Wednesday to discuss his proposal to raise the national minimum wage. The White House on Monday released details of the planned afternoon event at the University of Michigan in Ann Arbor. Obama has endorsed a bill to gradually raise the federal minimum wage from $7.25 an hour to $10.10 by 2016. Senate Democrats are planning votes on a bill, but Republicans are working to block it. The president told Congress in his State of the Union Address that raising the minimum wage "will help families." Michigan's minimum wage is $7.40 an hour. The school says tickets for the speech will be available to University of Michigan students at 9 a.m. Tuesday at the Michigan Union Ticket Office.