Te Kahika's NZ Public Party formed an alliance with Ross' Advance NZ Party in June.
Advance NZ had a large following on social media, with supporters sharing conspiracy theories about Covid-19, the United Nations, and 5G, among others. Thousands of the party's followers also marched and rallied against Covid-19 restrictions and lockdowns, including during level 2 restrictions.
The Serious Fraud Office (SFO) sent a complaint about the NZ Public Party and its collection and use of donations to the Electoral Commission, which ultimately didn't take action because the party wasn't registered.
Ross, who dropped out of contesting the Botany electorate, was charged with electoral fraud at the start of the year, after a 10-month SFO investigation. He denies the charges, which relate to donations paid to the National Party.
Both Labour and National ruled out working with Advance NZ, with Judith Collins explaining that was because, "I'm not insane". The party's Facebook account was taken down for breaching misinformation policies.