The ABC has been banned from entering the official election event for Pauline Hanson's One Nation.
Several dozen orange-clad party supporters and also candidates are gathering at a bowling club in Perth's south ahead of Senator Hanson's arrival, but ABC reporters have been forced to wait for her outside.
The ABC reporter said they were told only media with prior approval could enter.
"I tried to contact Senator Hanson's media advisor who confirmed we didn't have authorisation, we weren't allowed in.
The party is likely to more subdued than expected after polls showed the party's earlier popularity slumping.
Polls last month pointed to a vote of 13 per cent for the party but polls this week suggested that had slipped to eight per cent.
Senator Hanson told reporters on Saturday the preference swap deal with the Liberals had hurt One Nation.
Supporter Luke McGuinness, 39, told AAP the deal was "purely for bums in seats".
"That's all it's for - she hasn't made any shady plea bargain deals," he said.
"She hasn't sold out at all. She's using her brains.
"She's said she's still going to block Roe 8 if Labor gets in, she's still going to block safe schools if Labor get in, if Liberals get in she's still going to stand against Barnett for the sale of Western Power."
Mr McGuiness said he was usually a Labor voter.
"I voted the first time she came in and she got incorrectly jailed 20 years ago.
"I voted for her last year and I voted for her this year but this is the first time I've put a guernsey on because I've had a gutful.
"We need more control in this country on a lot of different aspects, from the most controversial part, which she constantly talks about, which is a certain demographic of people, right through to getting Australian jobs back - stop the selling of Australian assets."
