First of all, I do agree, that neither bank-withdrawals (in whatever "pattern"), nor lying to anyone (unless under oath) should be a crime. Absolutely not.
But, as long as it is a crime, people like Dennis Hastert — who had the power to do something about these laws, but did not, absolutely must be prosecuted under them. To the fullest extent and without mercy. (I argued the same thing about Spitzer — whose case was even worse, for he not only kept the laws he broke on the books, he strengthened them.)
He is not a regular citizen — employee, student, businessman. He had the power — and more of it, than even an "average" Congressman.
All that said about him, I find it disturbing, that the ruling party would prosecute the opposition's politicians. It does not look good. At all... They should be focusing on their own — like the aforementioned Mr. Spitzer, whose sole "punishment" for breaking federal laws, was resignation...