Washington (CNN) The Supreme Court will take up the most important gerrymandering case in more than a decade, it announced Monday.

The case involves district lines in Wisconsin that challengers say were drawn unconstitutionally to benefit Republicans. The case could have a major impact on how district lines are drawn up nationwide.

The court has said that too much partisanship in map drawing is illegal, but it has never said how much is too much.

Steve Vladeck, CNN Supreme Court analyst and professor of law at the University of Texas School of Law, told CNN that this case could have "enormous ramifications."

JUST WATCHED Does gerrymandering cause polarization? Replay More Videos ... MUST WATCH Does gerrymandering cause polarization? 03:34

"Although a majority of the court has suggested that states can violate the Constitution if they draw legislative districts primarily to benefit one political party, the justices have never been able to identify the specific point at which states cross the constitutional line. In this case, a lower court held that Wisconsin had indeed crossed that line," he told CNN.

Read More