North Carolina is sued by the League of Women Voters, the ACLU and minority groups for simply reducing the days, not necessarily the hours of early voting.  Interesting enough, according a survey of states by the NCSL, there are at least a dozen states that do not include even one day of early voting and states that do not provide for absentee voting unless there is a valid excuse. 

Are all these states violating the constitutional rights of voters to have early voting?  Do voters have a absolute right to three weeks of early voting versus two weeks of early voting.  Early voting is a recent new way of voting and less than a decade ago, there was no early voting anywhere in the country.

The complaint is here.

Update:  Early Voting has not been widespread in the United States but in 1992 about 7% of votes were early votes.  By 2000, that had risen to 16%.  Early Voting is a more form of voting in the last two decades.  Time flies.