HELENA, Mont. -

The Montana Supreme Court has upheld a lower court ruling that the state redistricting commission acted properly when it met to assign state senators to new districts.
   
The court affirmed the decision this week without comment.
   
A district court ruled in December that the Districting and Apportionment Commission didn't violate open-meetings laws at its meeting last year.
   
Some residents in a district that covers Lewistown and other nearby towns filed suit, arguing that the announcement of the meeting didn't specifically say the assignments would be discussed.
   
They said the commission's decision to assign Democratic Sen. Bradley Hamlett of Cascade to the Lewistown-area district unfairly deprived residents of the chance to vote for a senator until 2016.
   
The district includes all or part of seven counties.