Message to His Holiness Pope John XXIII.
It is with great pleasure that I have learned of your election as Supreme Pontiff of the Roman Catholic Church. I join with other Americans in extending my congratulations on your elevation to this high office. My best wishes for the success of your endeavors are, I am certain, shared by men of good will everywhere.
DWIGHT D. EISENHOWER
Dwight D. Eisenhower, Message to His Holiness Pope John XXIII. Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/234214