The Washington Post has been on Obama’s back about public financing before, so we shouldn’t be surprised by them giving him another whack today. But they offer several useful phrases that could be highlighted in some 527 ad:

…the real test of a candidate is whether he will stick by an announced principle even when that’s against his own interest. Now Mr. Obama could become the first nominee since Watergate to run a campaign fueled entirely by private money. When torrents of money arrive in small amounts and with little personal effort on the part of the candidate, it is fair to suggest, as Mr. Obama has done, that he has managed to create a parallel financing system that avoids many of the ills that public financing was supposed to address. But a good chunk of Mr. Obama’s overflowing treasury comes from big bundlers who have hauled in large sums. As The Post’s Matthew Mosk and Alec MacGillis reported, the Obama campaign has 79 such bundlers who brought in at least $200,000 each, including law firm partners, Wall Street financiers and corporate executives.

Heck, if I were Hillary, I would take those last two sentences and put up response ads, hitting Obama on his “I’m cleaning up politics, improving ethics standards, and standing up to special interests…” messages.