Anderson v. Martin
In Anderson v. Martin, 375 U. S. 399 (1964), the Supreme Court held that a Louisiana statute requiring the designation of a candidate's race on the ballot violated the Equal Protection Clause. In describing the effect of such a designation, the Court said:
"By directing the citizen's attention to the single consideration of race or color, the State indicates that a candidate's race or color is an important-perhaps paramount-consideration in the citizen's choice, which may decisively influence the citizen to cast his ballot along racial lines." Id., at 402.