Culver, Gregoire, Walz.

“Senator Obama has been fighting for ordinary Americans ever since he was a community organizer more than two decades ago. He has the unique combination of real life experience fighting for ordinary Americans, and the skill to bring Democrats, Republicans, and Independents together to get things done.” Sen. Obama picks up the endorsements of two more governors: Chet Culver of Iowa and Christine Gregoire of Washington. And, in related news, Minnesota Rep. (and superdelegate) Tim Walz backs Obama based on the Senator’s strong showing in Walz’s congressional district on Super Tuesday. “Last night at the Democratic caucuses, the voters of southern Minnesota overwhelmingly supported Sen. Barack Obama and his hopeful vision for positive change. As a superdelegate to the Democratic National Convention, I will honor their decision and support Sen. Obama.

Nothing halfway ’bout the Iowa way.

“‘I’ve never seen anything like it,’ Gov. Chet Culver, a Democrat who has not endorsed anyone in the race, said in an interview in his office on Friday. ‘The get-out-the-vote efforts are going to be the best ever.’” As Iowa looms next Thursday and the polls still suggest a virtual dead heat, the Dem candidates ready the ground troops. (Zogby has Clinton at 31% to Obama’s 27% and Edwards’ 24%. McClatchy puts Edwards in front with 24%, followed by Clinton at 23% and Obama at 22%.) “The developments reflect the tightness of the race…and the dynamics of an unusual contest where so few people vote: about 125,000 in the Democratic caucus of 2004. Aides to the candidates said this contest could be determined by a swing of as few as 1,000 voters.