Which constitutional amendment did the Supreme Court cite in ruling that Chinese laundryman Lee Yick had been unfairly convicted?

The Supreme Court cited the 14th Amendment in its ruling that Chinese laundryman Lee Yick had been unfairly convicted. The Court found that the enforcement of the law against Yick was discriminatory, violating the Equal Protection Clause of the 14th Amendment. This decision emphasized that laws must be applied equally and cannot be enforced in a manner that targets specific racial or ethnic groups.