I'm not going to add much, since Cenk Uygur does such a good job here, but just remember that it's the five Republicans on the Supreme Court who decided this (just as it was the five Republicans on the Supreme Court who gave us George W. Bush as president).
You don't think they have a partisan political reason for gutting the Voting Rights Act? Ha!
Let me just close with some quotes from Justice Ruth Bader Ginsburg's dissent:
1. "The sad irony of today’s decision lies in its utter failure to grasp why the [Voting Rights Act] has proven effective ... Throwing out preclearance when it has worked and is continuing to work to stop discriminatory changes is like throwing away your umbrella in a rainstorm because you are not getting wet."
2. "When confronting the most constitutionally invidious form of discrimination, and the most fundamental right in our democratic system, Congress' power to act is at its height."
3. "Congress approached the 2006 reauthorization of the VRA with great care and seriousness. The same cannot be said of the Court's opinion today. The Court makes no genuine attempt to engage with the massive legislative record that Congress assembled. Instead, it relies on increases in voter registration and turnout as if that were the whole story. See supra, at 18–19. Without even identifying a standard of review, the Court dismissively brushes off arguments based on "data from the record," and declines to enter the "debat[e about] what [the] record shows"…One would expect more from an opinion striking at the heart of the Nation's signal piece of civil-rights legislation."
4. "Just as buildings in California have a greater need to be earthquake proofed, places where there is greater racial polarization in voting have a greater need for prophylactic measures to prevent purposeful race discrimination."