The U.S. Supreme Court will soon hear arguments in the case over Virginia's congressional map.

The Richmond Times-Dispatch reports that arguments before the high court have been set for March 21.

The court has agreed to take up an appeal by Republicans in Virginia's congressional delegation. They're asking the court to reverse a decision by a three-judge panel that said lawmakers in 2012 illegally packed too many black voters into the 3rd Congressional District.

The new map could help Democrats win the 4th Congressional District, represented by Republican Rep. Randy Forbes

Republicans have also asked the U.S. Supreme Court to put a new congressional map for Virginia on hold and allow the 2016 elections to proceed under the old boundaries.