Spitzer Resigns, Vitter Gets A Pass?

Quick thoughts:

A senator from Louisianna and a Governor from New York both frequent prostitutes.
The senator is a republican and the governor is a democrat.

The justice department investigates both.

Why didn't the Senator resign?

There ought to be a law against forcing wives to take part in these press conferences, Vitter's wife, Craig's wife, Spitzer's wife, they all look xanaxed out.