President Donald Trump has signed a sweeping executive action to overhaul elections in the U.S. Tuesday's order demands documentary proof of citizenship be added as a requirement for federal voter registration.

Constitutional challenges are expected for President Donald Trump 's sweeping executive action to overhaul elections. Article I of the nation’s founding charter gives states, not the federal government,

U.S. citizens are already not allowed to vote in federal elections. But under the order, the national mail voter registration form will require that applicants provide either a U.S. passport, a REAL ID driver's license or state-issued card compliant with REAL standards,