RE: you do not have standing
If the GOP had balls, they Congressmen can band together and bring the suit up ON BEHALF OF THEIR CONSTITUENTS.
Not bloody likely; the GOP wants this special-status just as much as the Democrats, just like the IRS/NSA they don't want these problems addressed because that would mean losing these "political tools" should they ever regain power.
"We stand on the threshold of a new beginning. In order to ensure our security and continuing stability, the Republic will be reorganized into the first Galactic Empire, for a safe and secure society, which I assure you will last for ten thousand years. An Empire that will continue to be ruled by this august body and a sovereign ruler chosen for life." ―Emperor Palpatine, in his Imperial Inaugural Address[src]