What American president came within single vote in house of reps being impeached?

In May, 1868, the Senate came within a single vote of taking the unprecedented step of removing a president from office. That president was Andrew Johnson.

http://en.wikipedia.org/wiki/Impeachment_of_Andrew_Johnson

http://www.law.umkc.edu/faculty/projects/ftrials/impeach/imp_account2.html