A concerted effort was made by ministers and "spin doctors" yesterday to end the speculation of a rift between Gordon Brown and Tony Blair as it threatened to run out of control.
Mr Brown, who was in Brussels for an important European Union meeting, brushed aside questions about the alleged rift saying he would not be diverted from the serious business of government.
Peter Mandelson, the minister without portfolio, refused to go on the BBC lunchtime news when it became clear he would be interviewed about the relationship between Mr Blair and Mr Brown.
After a weekend in which Mr Brown's friends were accused of "letting their egos run away with them", Mr Blair's official spokesman dismissed the reports as "silly" and said: "That doesn't diminish or change the Prime Minister's view of the Chancellor - that he is an extremely excellent Chancellor for whom he has immense regard professionally and personally."
The spokesman also described as "shallow" the Brown biography by Paul Routledge, the political correspondent of the Independent on Sunday, which sparked the controversy.
Behind the denials lies a real fear that unless it is stopped now, there could be real damage done to the relationship which lies at the core of the Government.
Norman Lamont, the former Tory Chancellor, who had similar experiences with John Major, said: "This is largely exaggerated. It is a little local difficulty but if people go on talking it up, and taking pot shots at each other, it will become real. They have to cool it."
Downing Street compared the reports of the rift, allegedly over Mr Brown's grudge about being outmanoeuvred by Mr Blair for the leadership, with the "flavour of the week" speculation about Robin Cook, and his affair with his secretary; and about Jack Straw, the Home Secretary, and how his son was cautioned for allegedly supplying cannabis.