US President Donald Trump says he is looking very seriously at ending the right to citizenship for babies born to non-US citizens on American soil.
Mr Trump, speaking on Wednesday as he departed the White House for a speech in Louisville, said birthright citizenship was "frankly ridiculous".
Mr Trump first claimed he would scrap the right in October.
But that would spark a legal battle over whether he could alter the established understanding that the 14th Amendment grants citizenship to any child born on US soil, regardless of their parents' status.
