July 02, 1862
To the Senate of the United States:
I herewith return to your honorable body, in which it originated, an act entitled "An act to provide for additional medical officers of the volunteer service," without my approval.
My reason for so doing is that I have approved an act of the same title passed by Congress after the passage of the one first mentioned for the express purpose of correcting errors in and superseding the same, as I am informed.
ABRAHAM LINCOLN.
Abraham Lincoln, Veto Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/202205