Northwestern University trustee and current presidential chief of staff William Daley will resign at the end of the month, President Barack Obama announced Monday.

“Bill has been an outstanding chief of staff during one of the busiest and most consequential years of my administration,” Obama said during a press conference.

Daley started the chief of staff job barely one year ago in January 2011. He quickly established a testy relationship with Congressional Democrats and felt “marginalized” as a member of Obama’s inner circle, Politico reported Monday.

Daley is a member of one of Chicago’s most powerful political families – he is the son of 21-year Chicago mayor Richard J. Daley and the brother of recent Chicago mayor Richard M. Daley.

He also served as chairman of JP Morgan Chase’s Midwest region and was nominated to the NU Board of Trustees six years ago, though he did not attend the University.

After stepping down, Daley will return to his hometown and become a co-chair of the president’s Chicago-based campaign for re-election.

Current Budget Director Jack Lew will take over as chief of staff in February.