I think the plagarism done him in.
"In the past 24 hours, we learned of allegations that Ben Domenech plagiarized material that appeared under his byline in various publications prior to washingtonpost.com contracting with him to write a blog that launched Tuesday. An investigation into these allegations was ongoing, and in the interim, Domenech has resigned, effective immediately."
We appreciate the speed and thoroughness with which our readers and media outlets surfaced these allegations. Despite the turn this has taken, we believe this event, among other things, testifies to the positive and powerful role that the Internet can play in the the practice of journalism."