BATON ROUGE, La. (AP) — Republican senators in Louisiana advanced a plan Wednesday to eliminate one of two majority-Black, Democratic-held congressional seats following a U.S. Supreme Court ruling that struck down the state’s U.S. House map as an illegal racial gerrymander.

The early morning Senate committee vote came after hours of impassioned testimony from Black residents and Democrats opposed to the move. Republicans opted not to pursue a more aggressive approach, which could have targeted both Democratic seats for elimination.

The Supreme Court’s recent ruling weakening federal Voting Rights Act protections for minorities has prompted Republicans in several Southern states to try to eliminate House districts with large minority populations that have elected Democrats. Tennessee and Alabama already have acted to implement different House maps that could help Republicans win an additional seat. But a similar effort fizzled Tuesday in the South Carolina Senate.

The redistricting efforts to undo minority districts are the latest variation in a 10-month-long national redistricting battle that already has involved about one-third of the states. It gained steam when President Donald Trump urged Texas Republicans last year to redraw House districts in an attempt to win more seats in the midterm elections. Democrats in California responded with their own new districts. Numerous Republican states have redistricted since then.

Republicans think they could gain as many as 15 seats so far from new House maps in Texas, Missouri, North Carolina, Ohio, Florida, Tennessee and Alabama. Democrats, meanwhile, think they could gain six seats from new maps in California and Utah. The Virginia Supreme Court last week struck down a redistricting effort that could have yielded four more winnable seats for Democrats.

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Lieb reported from Jefferson City, Missouri.

Jack Brook And David A. Lieb, The Associated Press