Concludes Marquette law professor Edward Fallone.
Shorter version: The law authorizes Republicans to make it more difficult for Democrats to vote but does not require Republicans to present any evidence of what it is they claim they're seeking to prevent.* And for that you can thank — of all people — Justice Stevens.
That authorization is closer to what's known as the Original Intent of the Framers of the U.S. Constitution, who did not want anybody to vote.
* Which is fortuitous for them because no such evidence exists.