What rationalizations?
Those that now try to explain away why supposedly "lying us into war", "outing CIA agents", "illegally listening in to innocent american's phone calls", "supporting torture", yada, blah, etc, is now not worthy of impeachment procedings, by the folks who were red faced in their accusations of such. If that's what DC Dems believed, then it's their constitutional duty to impeach him. Brass has already listed several "charges" that supposedly can be applied
Unless of course, they didn't believe it, but used it 24/7 to finesse the electorate to perceive such, and that it was all just to pathetically attempt to score political hatchet points. My hats off, it worked