I te tau 1968, ka uru a Hayden ki te National Mobilization Committee ki te Whakamutua i te Pakanga i Vietnam ("te Mobe"), me te whai waahi nui ki nga whakaeke i waho o te Democratic National Convention
i Chicago, Illinois. I whakakorehia nga whakakitenga e te U.S. National Commission on the Causes and Prevention of Violence i muri mai i whakaahuahia hei tutu pirihimana. E ono marama i muri mai o te huihuinga, ko ia me ētahi atu kaiārahi e whitu tae atu ki a Rennie Davis,