Upvote:4
Unlikely. In the book "Abraham Lincoln. Speeches & Writings 1859-1865", Random House; Library of America, 1989 (which is a comprehensive collection of Lincoln's speeches and letters) James Buchanan is mentioned (by Lincoln) only once, in passing, in a letter to W.H.Wells regarding Lincoln-Douglas debates:
to support him or Buchanan, is simply to reach the same goal by only slightly different roads.