As the Supreme Court takes up birthright citizenship, a new poll finds that less than a third of Americans want it to end. But other parts of the White House's immigration crackdown are more popular.

As the Supreme Court hears arguments Thursday on a major Donald Trump policy for the first time in his second term, the president could secure a significant win affecting many of the lawsuits against his administration out of a case that is otherwise widely seen as a legal loser.

Norman Wong, whose great-grandfather brought the landmark case that enshrined birthright citizenship, says the new fight over the issue is "for the soul of our country."