UPDATE: The Associated Press confirms the Poltico report of earlier this afternoon that John McCain is ending his campaign in Michigan and pulling the plug on spending and canceling Michigan appearances.

The report indicates that the decision to abandon USS Michigan came last night.

One GOP official said McCain’s campaign made the decision to pull out of Michigan on Wednesday night, and conveyed the orders to staffers midday Thursday.

Earlier, a local news station reported that McCain canceled a trip to the state next week without explanation. Then, Democrats and Republicans who track the campaign’s advertising said the Republican did not buy airtime for Michigan for next week, though he did so for every other state where he’s been on the air. And, there was no indication that the Republican National Committee would continue running ads there either.

Michigan Messenger expects to have a report from the McCain Great Lakes Regional Headquarters in Farmington Hills, Mich., soon.