D.C. Mayor Adrian Fenty will throw his support behind Obama Tuesday.
WASHINGTON (CNN) - Washington, D.C. Mayor Adrian Fenty will endorse Sen. Barack Obama for president Tuesday, a source close to the mayor tells CNN.
The source said that the endorsement has been in the works for “a little while”. The mayor and senator have scheduled a 1:15 pm ET news conference to announce the endorsement.
Fenty will say that one of the main reasons he is backing Obama is the senator's promise to support full voting rights for the District of Columbia including full representation in the Senate.
“There’s one issue more important than all the rest to the voters,” the mayor is expected to say.
A spokeswoman for the mayor declined to comment.
Meanwhile, Sen. Hillary Clinton’s presidential campaign announced Tuesday the endorsement of Doug Palmer, the mayor of Trenton, New Jersey, and named him a co-chair of the campaign’s ‘Mayor Council,’ - a group of more than 100 current and former mayors who endorse the New York Democrat.
- CNN's Adam Levine