Two Liberal MPs met with right-wing leader Neil Erikson at a rally to support South African white farmers in last year's Perth.
Andrew Hastie and Ian Goodenough held a "brief meeting" with a convicted criminal who claims extreme right-wing views and was banned on both Twitter and Facebook.
Goodenough, who has a safe Moore mansion in the northern suburb of Perth, said Erikson, and some of his supporters met with both MEPs at the Forrest Chase rally in Perth last April and spoke directly to Hastie.
"We were at a meeting for migrants from South Africa and he came up and there was a conversation," said Goodenough Guardian Australia.
"It was a very short meeting from what I saw, two to three minutes."
Goodenough said he did not know the identity of a man and his "small group" of followers until he was recently seen by a staffer. He said he believed Erikson or one of his supporters had a meeting.
Hastie was asked on Tuesday to meet "Erikson", who is considered one of the right-wing movement puppets in Australia.
Canning's Safe Seat MP said he wouldn't answer "derogatory" questions.
Erikson and Cottrell were among the three members of the United Patriots Front who were convicted of inciting contempt for Muslims after staging a false movement to protest the plans to build the Bendig Mosque.
All three men were fined $ 2,000.
Erikson was also among those who dealt with the boy who broke Fraser Anning's head at a press conference in March. The teenager was accused of being assaulted in connection with this incident.