The UKIP boss branded David Cameron’s law-enforced Royal Charter a “Charter for the suppression of the Press, not for its regulation”.
Mr Farage, himself a victim of phone hacking, said the move was “a huge mistake”. And he blasted Mr Cameron for betraying his self-declared principles to always block a Press law.
He added: “Sometimes you need to fight for your principles, not give in because it looks like you’re going to lose.”
Mr Farage spoke as a backlash grew against the Royal Charter — the first Press law in 318 years. Westminster blogger Guido Fawkes — who writes a diary column for The Sun — said he would refuse to sign up.
The Spectator magazine will also snub it. And Private Eye editor Ian Hislop suggested he might too. He said: “I am worried by it.”
Other publishers including The Sun are still studying the plan.
But it was branded “crazy” by US commentators and a “threat to Press freedom” by Russia Today.
Last night Tory rebel MP Nick De Bois, who voted against the Press law on Monday, said: “We interfere at our peril.”