Apr 01, 2026; Washington, DC, USA; U.S. Sen. Alex Padilla (D-Calif.) shakes hands with a supporter before speaking at a rally outside the US Supreme Court as the court hears Trump v. Barbara in Washington, DC, on April 1, 2026. The court is reviewing a lower court's rejection of Trump’s argument that children of parents who are in the country illegally or temporarily are not entitled to citizenship. The president's interpretation of a 19th century constitutional provision would fundamentally alter how the citizenship clause has long been understood.; Mandatory Credit: Josh Morgan-USA TODAY via Imagn Images