From an Associated Press report:
Meantime, Dean's campaign got some other good news Thursday. Bruce Babbitt, interior secretary under President Clinton, plans to endorse the former Vermont governor, a senior Dean adviser said.
The backing of Babbitt, former governor of Arizona, is further evidence that the front-running Dean is steadily gaining support from Democratic Party leaders despite a campaign that has been fueled by his anti-establishment, anti-Washington rhetoric.
Babbitt would be the most visible Arizona endorsement for Dean to date, but there are many other AZ Democrats lining up behind Dean also:
http://www.deanforaz.com/deanforaz/endorsements.php