Lawsuits are being filed against President Trump's executive order, requiring the federal government to create a "citizenship list" that determines who can receive an election ballot by mail. The 23-state lawsuit was filed by Massachusetts Attorney General Andrea Campbell, who argues that the order violates principles of federalism and separation of powers. The order allows states to make changes to the list and still requires citizens to register to vote in their state. This is part of a larger effort by the White House to crack down on mail-in voting, following false claims of widespread election fraud involving non-citizens.