The biggest presidential primary campaign team in New Hampshire is tucked on a Manchester side street inside a four-story brick building and it belongs to the best-financed candidate seeking nomination: President Barack Obama.

The office is one of seven in the state and his re-election campaign has about 20 paid employees. Former Massachusetts Governor Mitt Romney and former Pennsylvania Senator Rick Santorum, the two front-runners in the Republican presidential primary after they emerged first and second in the Iowa caucuses, each have one office. Romney has nine paid staffers in the state and Santorum has eight.