The US Supreme Court expressed skepticism towards oral arguments on a landmark case aimed at restricting birthright citizenship, with Solicitor General D. John Sauer citing concerns about birth tourism from foreign nationals.

China has emerged as a focal point in the debate over birthright citizenship, as the US Supreme Court appeared sceptical of oral arguments on Wednesday in a landmark case driven by President Donald Trump’s push to restrict the practice. Birthright citizenship “has spawned a sprawling industry of birth tourism,” said Solicitor General D. John Sauer, Trump’s top litigator, in his opening remarks before the highest court in the country. “Uncounted thousands of foreigners from potentially hostile...