I certainly hope so -- and I say that without regard to who might be president, and without regard to the merits of this particular Executive Order.
If a president attempts to do something that is perceived to be outside his legal authority, a lawsuit is a right and proper response to it.
Amen!
As a personal note: I've read Damon Root's book on the Supreme Court,
Overruled. It is one of the best books I've read about
the high court in an extremely long time. I would recommend it as imperative reading for any federal officeholder (and maybe a
sitting justice or two), but I'm not sure it wouldn't go into their C.S. files post haste.
(But, then, I've been recommending Mr. Gene Healy's
The Cult of the Presidency: America's Dangerous Obsession with Executive
Power and its followup,
False Idol: Barack Obama and the Continuing Cult of the Presidency, too, and I'm not convinced
many have actually taken me up on the recommendation no matter how imperative those two books happen to be.)