Abigail Thernstrom has written Integration Now: The Supreme Court should scrap an antiquated and unconstitutional rule for National Review (subscription required). A snippet: “Today, therefore,[section 5] may serve as a brake on black political aspirations and a barrier to greater integration. While the country has moved consistently, if unevenly, toward racial integration, the law has arguably created a black legislative class too isolated from mainstream politics. Blacks elected from safe minority districts do not develop the skills necessary to win in a racially mixed setting, and, perhaps as a consequence, few members of the Congressional Black Caucus have run for statewide office and none have moved from the House to the Senate.”
UPDATE: You can read this without a subscription here.