Hanson asks Burston to resign from Senate

Pauline Hanson has kicked One Nation NSW senator Brian Burston out of her party and called on him to resign from the Senate over his decision to support the government's company tax cuts.

Senator Hanson sent him a letter saying she does not have confidence in him, and she wants him to resign from the Senate to allow her to pick a replacement.

"No, I will not be resigning from One Nation and I most certainly will not ever be resigning from my senate position," Senator Burston told 2GB radio on Friday.

The letter said Senator Burston has been "removed as deputy registered officer in NSW and in the federal party".

Senator Hanson said she bears Senator Burston "no animosity or ill will", but that she cannot be confident he would work as part of her team.

"I no longer have confidence in in you as an officer of Pauline Hanson's One Nation party," Senator Hanson's letter said.

"You describe yourself as loyal to me and now I ask that you demonstrate that loyalty to me by giving up your seat in the Senate to enable the party to appoint a replacement NSW senator."

In response, Senator Burston said, "I certainly will not be standing aside for Pauline to put in a crony that's a yes-man or woman."

He invited Senator Hanson to sack him.

"I'll be one of the other 23 people who have either walked or been sacked. I'll be 24 out of 30 - not a good record," he said.

Without Senator Burston in her team, Senator Hanson will no longer have a balance of power vote in the upper house.