“People have been let off the leash,” Thomas Mayo says quietly, swiping through screenshots.
Racist memes depicting First Nations Australians as “grifters”, “wife beaters” and “primitives” flash across his phone.
Then, personal threats appear – accusing him of “providing cover for evil”.
Mr Mayo is one of the public faces of the Yes campaign in Australia’s historic Voice to Parliament referendum, to be held on 14 October.
If successful, the vote will change the nation’s constitution for the first time in 46 years, creating a body for Aboriginal and Torres Strait Islander people to advise the government on policies affecting their communities.