On March 29, a group of Maine voters filed a lawsuit in federal court, to force the state to redraw the U.S. House district boundaries before the 2012 election. For some reason, Maine and Montana law provide that redistricting should not occur in the election that immediately follows completion of the census. Instead, both states won’t redistrict until 2013. The case is Desena v State of Maine, 1-11-cv-00117.
Montana, of course, does not need to redistrict any U.S. House district boundaries, because Montana only has one seat in the U.S. House.