If it's so wasteful, maybe Obama and Clinton could resign their Senate seats (they both have Democratic Gov's) and take commercial jets too.
It's not as thought either is accomplishing anything slinking in and out of town for votes.
I've criticized them for taking separate private jets when the expenses and impact could be shared. But resigning their seats at this point is foolish, and you know it.
Your "slinking" comment is obnoxious.