The rock star for the "Education Reform Rocks" rally at the Indiana Statehouse today is Michelle Rhee, whose record as chancellor of the Washington D.C. schools is hailed by so-called reformers as nothing short of miraculous.

Which makes the details of a USA Today investigation published Monday sort of embarrassing. The newspaper reported that "more than half of D.C. schools were cited since 2008 for having unusually high 'erasure rates,' which signify wrong answers changed to right ones on tests."

In other words – cheating. In some schools, there were as many as 10 erasures per student.

Rhee's successor has called for an inspector general review, noting that the school district uses the test scores for evaluation and compensation, illustrating another troublesome aspect to tying teacher salaries and bonuses to student test scores.

And it's probably not a coincidence that the same day the USA Today story broke, President Obama appeared to make a clean break from the school reform crowd, telling a Washington audience that high-stakes testing is bad for education.

Indiana rally organizers are probably wishing that the D.C. schools story could have waited until next week or, better yet, until after their pro-voucher, pro-charter, anti-union legislative agenda is in place. It sure doesn't look good when your headliner is at the center of a breaking scandal.