John Prescott has resigned from the Privy Council in protest at a delay to new press regulation plans that "borders on a conspiracy".
The Labour former cabinet minister - a member of the Privy Council since 1994 - used his column in the Sunday Mirror to suggest the Government had deliberately "dragged its feet".
"I believe this approach borders on a conspiracy to delay Press regulation. Much worse, it will embroil the monarchy in a possible conflict with Parliament and political division between the parties."
The peer - who will no longer be entitled to be referred to as "the right honourable" as a result of his withdrawal - said he had only "reluctantly accepted" the cross-party "compromise" on the original Leveson recommendations.
"I sent off my resignation letter on Friday. The Privy Council must put Parliament and Parliament's Charter first.", Lord Prescott said.