On 12 March 1761 he was transferred to the office of
Chancellor of the Exchequer, just ten days before the dissolution of parliament. In 1762 the Tory Prime Minister proposed Barrington
Treasurer of the Navy, which he accepted, but remained close to the duke, who declined to oppose the new ministry. Senior cabinet ministers may have met in autumn 1762 at
Beckett, his ancestral seat. For he was probably influential in the reconciliation between Newcastle and Cumberland, long embittered rivals, because in a letter to Barrington on 11 July he had signed off "your affectionate friend". Moreover, he strongly advised his whig friend to join with the Tories. Barrington's membership of Bute's ministry, in spite of his friendship with Newcastle, who was at the height of his powers, was, he claimed, on the basis of being a principled "servant of the Crown"; for the main achievement of Bute's time in office was the Peace of Paris in April 1763. On principle he would not oppose the ministry from within, and yet would not resign to suit his friend, mentor and patron. Bute suggested enlarging the government with a Foxite Coalition; but Barrington, who long been a friend of Charles James Fox felt "a coolness between us". The Duke of Devonshire's resignation, he feared, would destabilise the administration. And so it did precipitating in Newcastle's words, "such a clamour arising against the Ministry". At a meeting at Newcastle House, London, on 11 November the duke pressed Barrington to end his support, knowing the ministry would fall, which it did in April 1763. Yet while in office, the Viscount never visited Claremont, upheld bipartisan principles, and remained on friendly terms with Bute, Grenville, Egremont and Halifax. On 17 July 1765 Barrington returned to London to seek his former position of secretary at war from the King whom he told: "That a man like me, solely attached to himself, must not expect many
Court friends", at St James's Palace as department GHQ, at once abandoned by General Ligonier, who preferred the
esprit de corps of Knightsbridge. Barrington told Charles Gould, the Advocate-General that he was the "guardian" of the interests of "the poor, though deserving officer". He told the king that he "detested faction" and "...would never have anything to do with it". It was two days before he informed the Prime Minister that he had 'kissed hands' with the Sovereign. On 26 July, Barrington, the prospect of joining a Tory Chatham ministry looming over the horizon, played his royal hand again to stay in government. Yorke told the Pelhamite Hardwicke that he stayed "by virtue of his pliability". It became Barrington's political hallmark that his pledged allegiance was to the Army and the King only; while Cumberland was Commander-in-Chief he would share in any political decisions. Barrington remained in the party, yet a country whig/Tory for all that with independently minded ideas distinct from London whiggery. One particular dispute that rankled was the outstanding furore with the most distinguished soldier of his generation, Lord Ligonier. ''I have not time to answer your Lordship's letter of Sunday, which i received last night: perhaps it is better i should not particularly answer it, as I wish always to keep my temper especially with those who are older and wiser than myself...it certainly does not extend to make a Secretary at War give the King advice, which he thinks wrong. I told your Lordship very explicitly at our first outset, that I never would.'' Disliked by the Commander-in-chief Lord Ligonier, eyed warily from the Guards barracks at Knightsbridge, Barrington immediately had to deal with a number of crises: The Weavers and Corn Riots prompted the Life Guards out onto the streets,
The present riotous assemblings on account of high price of corn made it necessary for the Magistrates to call in a military force to their assistance,wrote mr Secretary. The Wilkes Riots of 1768/9 also called on the army to quench the rioters anger deployed, protesting at their champion's exclusion, the Household Cavalry were deployed in Parliament Square to protect the buildings. == The problem of the Colonies ==