A federal judge has heard from voting rights groups and a coalition of two dozen states that want the courts to halt President Donald Trump’s executive order seeking to create a federal voter list and limit who can receive a mail ballot, The plaintiffs argued in two lawsuits that Trump’s order should be found unconstitutional because the states and Congress, not the president, have the power to set election rules. The government argued the cases should be dismissed, arguing it was premature to worry about harm when the voter list had not yet been created. Trump's order is aimed at ensuring that only citizens vote, but instances of noncitizens casting ballots are extremely rare.