The Washington Post offers this report. See also reports here and here in the New York Times. UPDATE: See also this Dallas Morning News report, which quotes Nate Persily as follows:

Redistricting expert Nathaniel Persily, a law professor at the University of Pennsylvania, said it was certainly plausible for Justice lawyers to approve the map because overall it did boost minority representation, with white Democratic lawmakers the main targets.
‘No one broke the law here … for all the nefarious partisanship behind the re-redistricting,’ he said.