One Nation leader Pauline Hanson has been approaching high profile political figures to join her party, including former Labor leader Mark Latham.

Mr Latham this morning refused to rule out being approached, but 9NEWS has confirmed he is one of a number of people Ms Hanson has tried to recruit.

9NEWS understands conservative senator Cory Bernardi has also been asked.

Mark Latham has been approached to join One Nation. Picture: AAP (AAP)

It is understood Quenslanders Bob Katter and his son Robbie are also on the wishlist.

Asked repeatedly and directly if he'd been asked, Mr Latham wouldn't say yes or no, trying to brush it off with a bit of a laugh.

But nor have those within One Nation, given ample chances to deny it, dismissed the speculation.

"I've been approached by representatives of four different parties wanting me to run in the senate," Mr Latham said.

Pauline Hanson is battling internal troubles at One Nation. Picture: AAP (AAP)

"I'm not going to be talking about private conversations. I can't go into details.

"It's a classic non-denial, denial."

He did, though, say the country was headed in the wrong direction and "someone's got to get involved".

"The major parties are on the nose."

Bob Katter told 9NEWS he hadn’t been approached, and said, without being disrespectful "there’s more chance of the Pope becoming a Muslim” than him joining One Nation.

A spokesman for Cory Bernardi said “the only party he’s interested in being a member of is the one he started, the Australian Conservatives”.

Speculation surfaced yesterday as One Nation began to fall apart, after NSW senator Brian Burston, broke ranks and said he'd back the government's company tax cuts.