(CNN) -- The Obama administration will sue to halt a Texas requirement that voters show identification at the polls, signaling a new effort on voting rights enforcement following a U.S. Supreme Court ruling this year that threw out a key part of a landmark federal law. The Justice Department said on Thursday that had put in motion a plan to seek a court order declaring that the strict 2011 Texas law violates the Voting Rights Act and certain constitutional guarantees. "Today's action marks another step forward in the Justice Department's continuing effort to protect the voting rights of all eligible Americans," Attorney General Eric Holder said in a statement.
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Obama administration takes new approach to voting rights enforcement following court ruling
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Legal challenge to strict Texas law approved in 2011 will be test case
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Supreme Court in June invalidated key enforcement part of Voting Rights Act
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Previous formula used to determine which states, mostly in the South, needed special oversight
To do so the @placeholder must prove "purposeful" discrimination.