Newell-Davis v. Phillips

(1) Whether the state may deny equal protection of the laws and exclude people from a trade for the sole purpose of easing its regulatory burden, or whether restrictions on the right to enter a common and lawful occupation require more scrutiny; and (2) wether this court should overrule the Slaughter-House Cases and hold that the right to enter a common and lawful occupation is a privilege or immunity protected by the 14th Amendment.