The Indiana Senate has rejected a voting map meant to favour Republicans in the 2026 midterms, defying a months-long pressure campaign by the White House.
Enough Republican lawmakers in the state joined all Democrats to resist the changes that otherwise would occur every 10 years to reflect population change.
US President Donald Trump's call for Republican leaders to advantageously redraw maps to favour the party has sparked a redistricting battle across the nation.
Multiple states have moved to redistrict, including Republican-led Texas and Democratic-led California, two of the country's largest states.
Other states where redistricting efforts have been initiated or passed include Utah, Ohio, New Hampshire, Indiana and Illinois.
