President Donald Trump's motorcade arrives at the U.S. Supreme Court, Wednesday, April 1, 2026, in Washington. (AP Photo/Tom Brenner)

Demonstrators rally outside the U.S. Supreme Court as justices hear oral arguments on whether President Donald Trump can deny citizenship to children born to parents who are in the United States illegally or temporarily, on Capitol Hill in Washington, Wednesday, April 1, 2026. (AP Photo/Tom Brenner)

WASHINGTON, DC - APRIL 01: Rev. William Barber II (R), co-chair of the Poor People’s Campaign, speaks during a rally on protecting birthright citizenship outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Al Drago/Getty Images)

WASHINGTON, DC - APRIL 01: Chef José Andrés speaks during a rally on protecting birthright citizenship outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Heather Diehl/Getty Images)

CAPTION CORRECTION: Please note that in image number(s) 2269412241, 2269412238, 2269410897, 2269410575, 2269410534, 2269410533, 2269408765, 2269408722, 2269407781, the name spelling is incorrect. It should be Cecillia Wang NOT Cecilia Wang. We apologize for any inconvenience. WASHINGTON, DC - APRIL 01: ACLU National Legal Director Cecillia Wang speaks to the media outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Al Drago/Getty Images)

WASHINGTON, DC - APRIL 01: ACLU National Legal Director Cecillia Wang (L) and ACLU Executive Director Anthony Romero (R) walk together outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Heather Diehl/Getty Images)

WASHINGTON, DC - APRIL 01: Members of the ACLU legal team including ACLU National Legal Director Cecilia Wang (2L) and ACLU Executive Director Anthony Romero (2R) pose for a photo outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Al Drago/Getty Images)

WASHINGTON, DC - APRIL 01: ACLU National Legal Director Cecilia Wang speaks to the media outside the U.S. Supreme Court on April 01, 2026 in Washington, DC. The Supreme Court is hearing oral arguments in Trump v. Barbara to determine if President Trump's executive order ending birthright citizenship is constitutional. According to historians and the Court, this is the first time a sitting president has attended oral arguments at the nation's highest court. (Photo by Al Drago/Getty Images)