Article 2, Section 1, Clause 6

SEE ALSO:

An Act Relative to the Election of a President and Vice-President, 1 Stat. 239 (1792)

William Rawle, A View of the Constitution of the United States 55--57 (2d ed. 1829)

The Founders' Constitution
Volume 3, Article 2, Section 1, Clause 6, Introduction
http://press-pubs.uchicago.edu/founders/documents/a2_1_6s5.html
The University of Chicago Press