The US Supreme Court has overturned a lower court ruling that prevented Texas from using its new congressional map favoring Republicans. The ruling will not affect elections in Texas, as the state held its primaries in March after the Supreme Court had approved the use of the new map. This decision comes after several lawsuits alleging that the new Texas map was racially discriminatory. The Supreme Court allowed Texas to use the map for the primaries, but the ruling keeps that decision in place.