The U.S. Supreme Court ruled in Callais v. Landry to set aside much of Section 2 of the Voting Rights Act, requiring litigants to prove racial motivations in redistricting challenges. The court concluded that race cannot be considered when drawing district lines and that mapmakers need only consider political advantage. Under the decision, mapmakers in Republican states may draw districts provided the districts are contiguous and compact and no ethnicity is mentioned.

The NAACP said in a statement that "This ruling is a major setback for our nation and threatens to erode the hard-won victories we've fought, bled, and died for."

Carol Anderson, chair of African American studies at Emory University, said the decision opens a path for racial gerrymandering to be carried out under the guise of partisan map-drawing. "Our parties are so racially split, racial gerrymandering can use the fig leaf of partisan gerrymandering." Anderson said. "It allows them to go full-bore hog-wild."

James Woodall, former NAACP president in Georgia, offered a different assessment of the ruling's immediate scope. "Descriptions of the law being 'gutted' may be premature." he said. Woodall also addressed the political implications for Black voters. "Practically, what this now means is that black voters equal Democrat. And in order for black people to have political power, we will need to separate ourselves – and I hate to say this – we are going to have to separate ourselves practically from that assumption," he said.

At the start of the 2025-26 session, 62 of the 435 members of Congress were Black, the largest number on record. For the first time in American history, Black representation in Congress was equal to its representation in the American population. Fifty-six Hispanic representatives and 21 Asian Americans also serve in Congress. Four Black House members are Republicans, all of whom are retiring this year. More than half of Democratic representation in Congress is non-white, while less than 10% of Republican representation is non-white.

Democratic voters and Black voters tend to be concentrated in densely populated urban areas. According to the U.S. Department of Housing and Urban Development, roughly half of Americans in metropolitan areas live in highly segregated communities, including in New York, Los Angeles, Chicago, Detroit, and Philadelphia.