Which case dealt with the Fourteenth Amendment, Katz v. United States or Cantwell v. Connecticut?
Katz v. United States:  The Court's ruling refined previous interpretations of the unreasonable search and seizure clause of the Fourth Amendment to count immaterial intrusion with technology as a search, overruling "Olmstead v. United States" and "Goldman v. United States". Cantwell v. Connecticut: Cantwell v. Connecticut, 310 U.S. 296 (1940), was a United States Supreme Court decision that incorporated or applied to the states, through the Due Process Clause of the Fourteenth Amendment, the First Amendment's protection of religious free exercise.
Cantwell v. Connecticut