The bill would make it harder for women, people of color, young voters, and other marginalized groups to register to vote.

Although the bill may be aimed at undocumented immigrants, married women, young voters, and voters of color may get caught in the crossfire. A new bill introduced in Congress last month aims to require proof of citizenship to register to vote—which could make an already-complicated registration process harder for millions of Americans.

Research suggests up to 34% of voting-age women don't have documents proving citizenship with their current legal name.

The SAVE Act would require all Americans to prove their citizenship with documentation unavailable to millions and upend the way every American citizen registers to vote.