WASHINGTON (Reuters) - Michigan Republican Governor Rick Snyder has won re-election, NBC projected, defeating Democratic challenger Mark Schauer, a former U.S. congressman and state lawmaker.

Mr Snyder, 56, a former venture capitalist who was a political newcomer four years ago, campaigned on the improvement in the state's economy.

Democrats unsuccessfully targeted his record, including his backing for Detroit's bankruptcy plan and a tax on retiree pensions.