NEW YORK (AP) — Criticizing major players on both sides, former Susan G. Komen for the Cure vice president Karen Handel has written a blistering insider’s account of the prominent cancer charity’s decision to halt grants to Planned Parenthood and its swift retreat in the face of an intense, widespread backlash.

Titled “Planned Bullyhood” and due for publication on Sept. 11, the book depicts Planned Parenthood as an aggressive, partisan organization that was willing to weaken Komen to further a liberal political agenda. However, Handel — a conservative who resigned from Komen after its reversal — also assails Komen’s leadership as indecisive, timid and politically naive, and says the hasty decision to backtrack was “a terrible mistake.”