Oct. 7, 2015 — New Hampshire Gov. Maggie Hassan (D) announced Monday that she will challenge Sen. Kelly Ayotte (R) next year. Rumors abounded since the time Hassan was re-elected to a second two-year term that she would in fact make the move to the Senate race. Recently, however, it appeared that the chances of her giving up the governorship in order to challenge the Republican incumbent were becoming lesser. So, the announcement came as a mild surprise.
The move increases the Democrats’ chances of re-taking the Senate because they put another state in play. This is clearly now a toss-up race, featuring two veteran statewide candidates in the most unpredictable of political states. No place has defeated more federal incumbents since 2006 than New Hampshire. Beginning with Jeanne Shaheen’s (D) victory over then-Sen. John E. Sununu (R) nine years ago, the electorate has subsequently unseated six congressional incumbents while only re-electing three during this five-election period.
The New Hampshire political tides have also been strong. Except for the governor’s office, which has remained primarily in Democratic hands, the state has swept out the entire slate of both party office holders almost routinely in the past 10 years.