Democrat Gary Peters' announcement means Michigan will have an open U.S. Senate seat for the second time in two years.

Democratic U.S. Sen. Gary Peters of Michigan on Tuesday ... open U.S. Senate seat for the second time in two years. Peters' campaign staff put out a release and a video from the senator announcing ...

The announcement by Sen. Gary Peters creates an open seat in battleground Michigan, which has flipped from red to blue to red ...

(WNDU/AP) - Michigan Sen. Gary Peters has announced he will not seek ... been surrounded by an extremely talented and dedicated staff who work tirelessly every day. Together, we have been able ...