Developments in NH's US Senate race

There were some developments Thursday in New Hampshire's closely watched 2008 US Senate race in which Senator John E. Sununu, a Republican, is running for re-election.

Former astronaut and Dartmouth Medical School professor Jay Buckey told his local paper, the Valley News, that he is officially in the race. Buckey becomes the third Democratic candidate.

Meanwhile, former New Hampshire Democratic Party Chair Kathy Sullivan is letting it be known that she is starting a draft movement to encourage former Governor Jeanne Shaheen to enter the race.

And Portsmouth Mayor Steve Marchand, a Democrat, announced 10 new endorsements today, including Justin Nadeau, the 2004 Democratic Congressional nominee, and two committee chairs in the New Hampshire House of Representatives.