In court no less.
The entire document is worth a read, in which the various ways the GOP legislature went about studying which voting methods were used more by black people and then eliminating them are laid out in detail... but if you want a nice highlight:
As “evidence of justifications” for the changes to early voting, the State offered purported inconsistencies in voting hours across counties, including the fact that only some counties had decided to offer Sunday voting. Id. The State then elaborated on its justification, explaining that [c]ounties with Sunday voting in 2014 were "disproportionately black” and “disproportionately Democratic.” J.A. 22348-49. In response, SL 2013-381 did away with one of the two days of Sunday voting.
See N.C. State Conf., 2016 WL 1650774, at *15. Thus, in what comes as close to a smoking gun as we are likely to see in modern times, the State’s very justification for a challenged statute hinges explicitly on race -- specifically its concern that African Americans, who had overwhelmingly voted for Democrats, had too much access to the franchise.6
That's right. The GOP government in North Carolina tried to argue to a Circuit Court judge that their justification for eliminating early Sunday voting hours was because too many black democrats vote on Sunday and they wanted to stop that. Because apparently, they are now under the impression that that counts as sufficient justification for acting to restrict people's ability to vote in their elections.
Let's hear the excuse making or attempts to deflect attention elsewhere begin from the people we all know it's coming from...