We The People, White House petition page.

Formally recognize AntiFa as a terrorist organization

Terrorism is defined as “the use of violence and intimidation in pursuit of political aims”. This definition is the same definition used to declare ISIS and other groups, as terrorist organizations. AntiFa has earned this title due to its violent actions in multiple cities and their influence in the killings of multiple police officers throughout the United States. It is time for the pentagon to be consistent in its actions – and just as they rightfully declared ISIS a terror group, they must declare AntiFa a terror group – on the grounds of principle, integrity, morality, and safety.

Follow the Link above to sign the petition.

UPDATE:  As of today (Tuesday Aug 22) the petition has 240,779 signatures in five days!  (as a comparison the lefty petition to force disclosure of President Trumps tax returns has a little over a million signatures after 214 days).  And the media is ignoring the Antifa petition completely, unlike their frequent referrals to the other one.