His lawyers are requesting an injunction for two reasons:

• That they believe that the process is unconstitutional, and wish to challenge the process before a trial (and inevitable guilty verdict).
• That the Supreme Court has granted detainees the right to challenge their enemy combatant classification, and as such, the trial cannot start until that is adjudicated in federal court.

It should be interesting, because Bush and His Evil Minions^™ are desperately trying to get these trials scheduled for maximum impact on the November elections.

And the Judge has decided to allow the trial to proceed on schedule.