Not long before the Supreme Court heard arguments on whether to allow President Donald Trump’s restrictions on birthright citizenship to take effect, he falsely claimed on Truth Social that the United States is the only country that offers such a right.

The Justices on the Supreme Court wrestled on Thursday with a high-stakes case involving birthright citizenship that’s poised to shape both the Trump Administration’s immigration policy and its attempts to expand presidential power.

Protesters supported birthright citizenship at the San Jose, Calif., U.S. Citizenship and Immigration Services and Immigration and Customs Enforcement offices on Thursday.

Supreme Court Justice Brett Kavanaugh launched a series of pointed questions at a Trump administration lawyer about the president’s plan to end birthright citizenship. The shockingly blunt approach during oral arguments Thursday signaled an apparent opposition to the administration’s arguments.

Activists protest in San Jose as U.S. Supreme Court hears challenges to President Donald Trump’s immigration executive orders

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."