What to Know The U.S. Supreme Court has dismissed another challenge by GOP lawmakers to the legality of new congressional district in Pennsylvania.

Under the 2011 map, Republicans won 13 of Pennsylvania's 18 House seats in three straight elections.

In January, the state ruled the districts violated constitutional guarantees of free and equal elections.

The U.S. Supreme Court is dismissing another challenge by top Republican lawmakers from Pennsylvania to the legality of new congressional district boundaries imposed by the state's highest court in a gerrymandering case.

The high court on Monday denied the case by House Speaker Mike Turzai and Senate President Pro Tempore Joe Scarnati. It's the third time the nation's highest court has rejected such a GOP effort.

November's election is being conducted on new court-drawn districts viewed as more competitive than the now-invalidated map drawn in 2011 by Republicans to help Republicans win. Under the 2011 map, Republicans won 13 of Pennsylvania's 18 House seats in three straight elections even as Democrats dominated statewide elections.

In January, the state ruled the districts violated constitutional guarantees of free and equal elections.