CNN — The presumptive GOP nominee's wife, Ann Romney, will stump for her husband in the battleground state of Michigan on Friday.

Romney will attend a Victory Center opening in Royal Oak while her husband campaigns in New Hampshire prior to his trip overseas to Israel and London for the Olympics Games next week.

Polling indicates a tight race in the Great Lakes State between President Obama and Mitt Romney.

The former Massachusetts governor's wife has been increasingly visible on the trail campaigning with her husband as August's Republican National Convention draws near.

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