By Mikey Smith Two sitting Tory ministers have broken ranks to call on Jeremy Hunt to immediately increase defence spending, in a blow to Rishi Sunak’s authority. Ministers are supposed to present a united front on government policy, refraining from writing or speaking in a way that contradicts government policy. In the Budget, Mr Hunt made a vague pledge to increase defence spending to 2.5% of national income “as soon as economic conditions allow”. It stands at just over 2% now. But Security Minister Tom Tugendhat and Foreign Office Minister Anne-Marie Trevelyan signed a joint article – entit…