The Commission on Presidential Debates has recently added an email address for comments to their main page at:
The comments email address is: email@example.com and results (at least for this reporter) in a reply of:
Thank you for your comment. Although this account is monitored daily, we are unable to personally respond to all comments due to the large volume. We appreciate your interest.
IPR readers are nonetheless encouraged to contact the Commission on Presidential Debates at the email address above to advocate for the inclusion of the “Third Party” Presidential and Vice-Presidential candidates of their choosing.
Those readers receiving responses substantially different from the one reproduced above are likewise encouraged to post those responses here.