Orrin Hatch actually said...

I want you to understand that it is that important that the Solicitor General's office never be politicized in any way, shape, or form.

That certainly would because the Department is already on record as saying it is reasonable.

In my view, the administration has abandoned its duty to Congress in order to do a political favor for a political constituency.

I think it is just--if you disagree with them and it is a weighty issue...you have no choice but to resign.