India, April 3 -- Democrats sued Wednesday to block President Donald Trump's latest executive order restricting mail voting, arguing that the US Constitution empowers states and Congress, not the president, to determine who is eligible to vote by mail.

The lawsuit marks the second round of battles over the president's power to control elections. Trump's opponents handily won the first round last year, blocking his initial executive order intended to reshape election procedures by convincing multiple federal judges that it was likely unconstitutional. Trump on Tuesday announced that his administration would compile lists of who is eligible to vote in states and that the US Postal Service would only mail ballots to those who met that crite...