Justices ponder throwing out Pa. congressional map

HARRISBURG, Pa. (AP) -- A challenge by Democratic voters to Pennsylvania's Republican-crafted congressional district map could determine how much partisan gerrymandering is too much.

State Supreme Court justices held argument Wednesday about whether the map of 18 congressional districts violates the state constitution and if so, what the court should do about it.

The Republican legislative leaders who were sued over the map say partisan elements aren't surprising in a document drafted by elected officials.

MORE: Pa. case takes new approach to redistricting rules | Lawyer: 'Voter-proof' state congressional map favors the GOP

If the justices order a new map, the Republican leaders don't want it in place before 2020.

The plaintiffs say the maps are discriminatory, arguing their rights to political expression and association have been harmed.

They want lawmakers to be given a couple weeks to attempt to pass a replacement before the high court would take over the task.

MORE: Gerrymandering case sows doubt in big year for House races