[5] In March 2007, he was involved in a scuffle with Liberal senator Bill Heffernan while handing out how-to-vote cards for the NSW State Election.

[6] In June 2007, Harris fought against the redevelopment of the Carlton United Brewery site in Chippendale, taking the then Minister for Planning to the Land and Environment Court.

[7] In August 2007, Harris heavily opposed the security measures put in place for the hosting of the Asia-Pacific Economic Cooperation conference.

Harris was a long time Treasurer of the NSW Greens but quit the position in 2016, criticising the party as acting like a major bank trying "to shaft their customers".

[9] In 2019, Harris threatened legal action in an attempt to change the party’s upper house ticket just weeks before the state election.