This article by Adam Liptak is published by The New York Times. Here is an excerpt:

The Supreme Court on Monday allowed congressional maps that had been approved by state courts in North Carolina and Pennsylvania to stand, giving Democrats an advantage in this year’s election in two key states.

In issuing the orders, the Supreme Court rejected requests by Republicans to restore maps approved by G.O.P.-controlled state legislatures. Those district lines were thrown out and replaced by courts in both states after challenges by Democrats.

Under the new court-imposed maps in both states, Democrats are likely to gain more seats than they would have under the legislature-approved versions.

Read the full story here.