Alaska's attorney general has signed onto a lawsuit arguing that the drawing of political district boundaries shouldn't favor any political party.

In many states, the redistricting process is controlled by whichever party holds a majority in the state legislature, which can have big impacts because districts are often drawn to favor the party in power.

That means more incumbents stay in office because voters who oppose them are spread out across several districts so that it's harder to elect a challenger.

Alaska Attorney General Jahna Lindemuth joined a legal memo this week supported by 16 other state attorney's general, arguing that Wisconsin's redistricting plan is unconstitutional because it's too partisan.

Governor Bill Walker says he supports the move, calling excessive partisan redistricting a disservice to democracy.