Editor's Note: There are just 28 days until Election Day, and the NBC News political unit each day will profile the most competitive races this midterm season.
In 2008, with a Democratic presidential candidate at the top of the ticket, Rep. Tim Bishop bested challenger Lee Zeldin in this eastern Long Island district. Two years later, when the Tea Party wave swept out many of his fellow freshmen, Bishop barely held on to his seat. Zeldin won a contested primary in June – aided by big-dollar hedge fund head donor Robert Mercer – and now he’s angling for a more competitive rematch. He would be the House’s only Jewish Republican, following the defeat of former Majority Leader Eric Cantor.