NEW : Democratic sources cite reasons for Daley 's decision to step down . With Obama now involved in election-year politics , the president has taken steps to appeal to his Democratic base , such as his recess appointment of Richard Cordray as head of a new consumer protection agency . Comment: Daley will be replaced by Jack Lew , the White House budget director . A source says Daley will remain on the job through January .
NEW : Democratic sources cite reasons for Daley 's decision to step down . Comment: Daley will be replaced by Jack Lew , the White House budget director . A source says Daley will remain on the job through January .