This Time Congress to the Rescue

I'm not up on the judicial system, but why does the same judge hear this case every time even when new motions come up?

From CNN.com - Last-ditch bid in right-to-die case - Mar 18, 2005:

"Schiavo is scheduled to have her feeding tube removed at 1 p.m. today, under court order.

'Later this morning, we will issue a subpoena, which will require hospice administrators and attending physicians to preserve nutrition and hydration for Terri Schiavo to allow Congress to fully understand the procedures and practices that are currently keeping her alive,' a statement from the House Republican leadership said.

That statement was released by House Speaker Dennis Hastert, House Majority Leader Tom DeLay and Government Reform Committee Chairman Tom Davis. Details of the subpoena were not immediately clear and it was not revealed whom it actually targeted."