The Trump administration is turning its attention to immigrants who falsely claim to be citizens so that they can seize on key American benefits such as voting, Social Security checks, and even passports.

In its latest policy update, U.S. Citizenship and Immigration Services is aligning its vetting process with a 2019 court decision that led to the deportation of a Chinese man who fraudulently bought a proof of citizenship document so he could get a U.S. passport.