The New York TImes:

It was inevitable that Michelle Rhee, the District of Columbia’s hard-driving schools chancellor, would resign after her boss, Mayor Adrian Fenty, lost last month’s Democratic primary. It was no secret that Ms. Rhee had a strained relationship with Vincent Gray, the presumptive mayor and chairman of the City Council.
Still, Ms. Rhee’s departure is a loss for the nation’s capital. It has unsettled middle-class parents who valued the strong, reform-minded leadership that was setting Washington’s schools on the path back from failure. And it sent a tremor through the private foundations that provisionally committed nearly $80 million to support the school reforms that were started during Ms. Rhee’s tenure.
After Mr. Gray’s clashes with Ms. Rhee, it was good news that he said the right things after her resignation. He pledged to move ahead with the reform agenda, which has strengthened the city’s teacher corps, remade a patronage-ridden central bureaucracy and raised math and reading scores. He said he would keep Ms. Rhee’s senior staff on for the remainder of the school year and named her deputy and longtime associate, Kaya Henderson, the interim chancellor.