Former federal Labor opposition leader turned media commentator Mark Latham has announced he will join the Liberal Democrats Party, headed by David Leyonhjelm.

Mr Latham revealed his decision in a post on his Facebook page, saying he was returning to politics to "play a role in fighting for our national values".

"I support 80-90 per cent of the Liberal Democrats platform, pretty good for someone with strong views formed over a long period of time," Mr Latham said.

"So I have joined up and want to play a role in fighting for our national values, based on personal freedom and responsibility."

He said the "party of freedom" allowed room for "dissent and diversity of opinion", something he said contrasted greatly to the values of his former party.

"Shorten Labor is only interested in diversity of skin colour, gender and sexuality — Safe Schools BS," Mr Latham wrote.

The comments came on the same day Labor leader Bill Shorten promised a review into an ALP video that sparked racism allegations and some internal party anger.

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The NSW Labor Party now says Mr Latham has been banned for life from the ALP.

Mr Latham was ousted from his role on Sky News earlier this year after suggesting a Sydney high school student was gay on-air because he was involved in a feminist video.

It was the latest in a string of controversial remarks by Mr Latham, who said he would discuss his decision on the show hosted by conservative commentator Andrew Bolt.

"I wouldn't normally be on that channel but Andrew Bolt has been a great champion of freedom of speech, including mine," Mr Latham said.

"We trust you, the people, to listen to various views and make up your own mind about political issues!! It's called democracy!!"