Nigel Farage has blasted the Welsh Senedd after presiding officer Elin Jones announced the devolved parliament would ban GB News from its internal TV system.
The decision was made by the Senedd Commission rather than Mark Drakeford's administration.
However, GB News remains available for staff and members in the Welsh Parliament via online streaming websites.
Farage, 59, said: "There are parts of Cardiff which I don't think are perhaps operating in the way they ought to be.
WATCH NOW: Nigel Farage discusses the Senedd's decision to ban GB News
"One of them is the Welsh Parliament. The speaker of which has decided to ban GB News from its television sets within that building."
The 59-year-old, who made the comments as Farage at Large hit the road to join viewers in the Welsh capital, added: "That kind of censorship against a legal, registered, regulated news channel just based on the really, really small-minded opinions of that women Elin Jones, frankly I think is a disgrace and we are going to fight to get it overturned."
Welsh Tory leader Andrew RT Davies joined Farage in Cardiff to discuss the Senedd's decision.
He told GB News: "In a democracy, you have to have plurality of the media so people can choose the views that they want to buy into."
An image from inside GB News' newsroom
Davies added: "They don't want any dissenting voices, as they see it, or alternative voice, in their Parliament.
"It's not their Parliament, it's the people's Parliament and it's for the people to decide who sits in that Parliament.
"If people are disgusted by these acts of censorship by the presiding officer they need to exercise their vote in 2026 and make that change happen because ultimately this is a direct assault on the news on the fourth estate that hold politicians, like myself, to account."
Jones and Drakeford were invited to join Farage on GB News tonight.
Welsh Tory leader Andrew RT Davies
A spokesperson for the Senedd said last week: "GB News has been removed from the Senedd’s internal television system following a recent broadcast that was deliberately offensive, demeaning to public debate and contrary to our parliament’s values.
"There are now several ongoing Ofcom investigations into the channel.
“The Commission will discuss the issue at a future meeting, and staff and Members who wish to view GB News will still be able to do so online in the Senedd.”
Plaid Cymru spokesperson for broadcasting Heledd Fychan previously said her party fully supports the decision.