Decision marks setback for president and Republicans, who set in motion national redistricting battle last yearThe US supreme court turned back an emergency appeal by Missouri officials to use a newly drawn congressional map backed by Donald Trump in the November midterm election, letting stand a ruling by the state’s highest state court that blocked the new lines from taking effect.Last week the Missouri supreme court ruled that the map must go before voters to approve or reject the new distric... The ruling is a rare defeat for Republicans in a nationwide redistricting war ahead of November’s pivotal midterm elections. Key points and original sources are listed below.

• Decision marks setback for president and Republicans, who set in motion national redistricting battle last yearThe US supreme court turned back an emergency appeal by Missouri officials to use a newly drawn congressional map backed by Donald Trump in the Novem...S1

• The ruling is a rare defeat for Republicans in a nationwide redistricting war ahead of November’s pivotal midterm elections.S2

• Republicans rushed to the high court after the Missouri Supreme Court ruled the state could not use the redrawn map, which was designed to eliminate one Democratic-held seat, this year.S3