November 03, 1948
My heartiest congratulations on your election and every good wish for a successful administration. I urge all Americans to unite behind you in support of every effort to keep our nation strong and free and to establish peace in the world.
Thomas Dewey, Telegram to President Truman Conceding the Presidential Election Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/345911