He is the fourth leader of the group; his three predecessors died in office.
As the Court observed in Katz, “what a person knowingly exposes to the public is not a subject of fourth Amendment protection.”
What does the fourth Amendment forbid the royal inspectors—sorry, the cops—to do?
Coming after third, as in order, place, rank, time, or quality.
Being the digit that is next to and on the outermost side of the third digit, as on a foot.