sentences:  Senator John E. Sununu ran for re-election to a second term, but was defeated by Democrat Jeanne Shaheen in a rematch of the 2002 election.Shaheen's win ended 30 years of Republican control of this Senate seat, and made her the first Democratic Senator from New Hampshire since John A. Durkin left office in 1980.For a considerable amount of time, New Hampshire had always been considered an island of conservatism in the Northeast.