THE PRESIDENCY
Around the L.B.J. ranch, folks stroll along "Friendship Walks." They are paths of cement squares inscribed with the signatures of the rich and the famous who have caught the President's fancy on visits to the 400-acre spread. The walk, a sort of presidential version of Grauman's Chinese Theater forecourt, already includes the names of John Kennedy, all seven original U.S. astronauts, and Germany's Chancellor Ludwig Erhard. Last week, in a favorite ranch ritual, Lyndon added two new ones as Mexico's President-elect Gustavo Díaz Ordaz and Wife Guadalupe stooped to etch their...