If there were top Democrats who knew about this long before Hastert did, their knowledge of Foley's second batch of text messages (that Hastert did not know about) could land them in deep water since knowing about these and not reporting it to the authorities could very well be breaking the law.
I don't know if this is what happened, but sooner or later the truth will surface about who knew what and when.
And furthermore...she nixed the suggestion of Louis Freeh to head the independent investigation..