Clinton campaign manager and longtime Hillary friend Patti Solis Doyle has stepped down from her position and been reassigned to a senior advisor role.

From the AP:

Campaign aides said Solis Doyle made the decision to leave on her own and was not urged to do so by the former first lady or any other senior member of the team. But it comes as Clinton struggles to catch Obama in fundraising and momentum and faces the prospect of losing every voting contest yet to come in February.

Solis Doyle announced the shift in an e-mail to the staff on Sunday.

“I have been proud to manage this campaign and prouder still to call Hillary my friend for more than 16 years,” Solis Doyle wrote. “Maggie is a remarkable person and I am confident that she will do a fabulous job.”

Solis Doyle said she will serve as a senior adviser to Clinton and the campaign, and travel with Clinton from time to time.

Doyle Will be replaced by another longtime Clinton friend and supporter Maggie Williams who joined the campaign after New Hampshire and was Hillary’s White House Chief of Staff. Check out a quick profile of Williams.

E-mail From Patti Solis Doyle

Over a year ago Hillary launched her campaign for President.
Her announcement began a historic effort that has inspired millions and brought hundreds of thousands to their feet all across this nation.

I have been proud to manage this campaign, and prouder still to call Hillary my friend for more than sixteen years. I know that she will make a great President.

This has already been the longest Presidential campaign in the history of our nation, and one that has required enormous sacrifices from all of us and our families.

During the last month I have been working closely with my longtime friend, Maggie Williams.

This week Maggie will begin to assume the duties of campaign manager. I will serve as a senior adviser to Hillary and the campaign and travel with Hillary from time to time on the road. Maggie is a remarkable person and I am confident that she will do a fabulous job.

Although I will continue to see you all at headquarters, I would be remiss if I didn’t thank each of you for your dedication, excellence, and passion over the last year.

You are the best campaign staff in the history of Presidential politics and I am grateful to each of you for your hard work and friendship.