Thousands joined a Sadrist rally to protest the Bush/McCain vision of a permanent U.S. military presence in Iraq, but thanks to recent operations to gain military control over Sadr City it was possible for Iraqi Security Forces to reduce the ability of anti-government protestors to peacefully assemble (progress!). Also of note, Abdul-Aziz al-Hakim also issued a statement in opposition to this idea.

So the U.S. congress and Iraq's two largest political parties are both opposed and of course naturally this means Bush will press ahead without congressional approval. And I assume that whatever Hakim or anyone else has to say about it now, as long as Bush is commander in chief of a 130,000+ thousand strong occupying army, he'll be able to persuade Iraqi politicians to sign off on his plan.