President Donald Trump signed an executive order to revoke birthright citizenship for children of undocumented immigrants, but a new lawsuit argues presidents "are not kings."

Most legal experts say the Constitution grants citizenship to children born in the U.S. to undocumented immigrants.

New Jersey is now taking action against President Donald Trump's executive order to end birthright citizenship. The order would take effect within 30 days, meaning any child born to undocumented immigrants on U.