President Donald Trump on Tuesday signed an executive order to make sweeping changes to the U.S. election system that critics say threaten to disenfranchise millions of eligible voters.

President Donald Trump signed an executive order Tuesday seeking to boost proof of citizenship requirements for voter registration, which critics say could disenfranchise poor and older voters who don’t have easy access to citizenship documents like passports or birth certificates.

President Donald Trump's executive order seeking broad changes to how elections are run in the U.S. is vast in scope and holds the potential to reorder the voting landscape across the country, even as it faces almost certain litigation.