US electoral system explained

The ongoing debates (August 2015) among potential Republican presidential candidates reminded me of a note I posted several years ago. Below is a link to an updated (and hopefully better) version of this note:
http://pages.csam.montclair.edu/~kowalski/presidentEN.htm
How can a retired teacher miss an opportunity for sharing what he thinks he understands better? Feel free to share the above link with all who might be interested, especially students. Comments will be appreciated, as usual.
Ludwik Kowalski, Ph.D. Professor Emeritus,
Montclair State University