The Supreme Court hears arguments in Trump v. CASA, Trump v. Washington, and Trump v. New Jersey, a case about judges stopping President Trump's executive order that limits birthright citizenship for children born to undocumented parents.

The Citizenship Clause, ratified in 1868 after the Civil War, was included to ensure that formerly enslaved people would be citizens. It effectively overturned the notorious Dred Scott decision, in which the Supreme Court held that Black people, no matter their status, were not citizens.

Birthright citizenship is among several issues the administration has asked the court to deal with on an emergency basis, after lower courts acted to slow President Trump’s agenda.