Detroit's bankruptcy is hitting a courtroom for the first time as a judge considers what to do with challenges from retirees who claim their pensions are protected by the Michigan Constitution.

The city wants U.S. Bankruptcy Judge Steven Rhodes to put a stop to lawsuits in other courts, especially after an Ingham County judge said state officials ignored the constitution and acted illegally in approving the bankruptcy last week.

Rhodes has scheduled a hearing for Wednesday at 10 a.m. -- in a large courtroom of the United States District Court for the Eastern District of Michigan, which is off Lafayette Avenue in downtown Detroit.

Protesters are planning to gather outside, while lawyers for some of the thousands of creditors arrive early for seats inside.

Ingham County Circuit Judge Rosemarie Aquilina last week ordered Gov. Rick Snyder to withdraw the bankruptcy filing.

Read: Court suspends lawsuits over Detroit bankruptcy filing

Aquilina said she has jurisdiction because the case is a state issue -- the Michigan Constitution protects pension benefits and Michigan's emergency manager law is in play.

But Detroit Emergency Manager Kevyn Orr has asked the federal bankruptcy court to expedite the Chapter 9 hearings. He wants to move quickly because, 15 months from now, the Detroit City Council will have the power to end his state appointment.

A second bankruptcy hearing is already scheduled in August.

Special Coverage: Detroit Bankrupt