U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump leaves the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump speaks to reporters before leaving the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)

U.S. President Donald Trump leaves the White House in Washington D.C., the United States, on Aug. 21, 2019. Donald Trump said on Wednesday that his administration is seriously considering an executive order to end birthright citizenship. (Photo by Ting Shen/Xinhua)