During the ten years before he entered Parliament Adair was an active opponent of the court. According to Almon
Adair established his reputation by his fervent backing of Wilkes and the popular cause. In May 1769 he was counsel for the Middlesex freeholders petitioning against the seating of Luttrell, and was approached by Rockingham about publicising the Opposition case;
In 1775 Adair was returned for Cockermouth by Sir James Lowther, whom he had attacked in his pamphlet of 1768, but who had by now gone into opposition. In Parliament Adair consistently opposed North’s Administration, and spoke fairly frequently. His first reported speech was in support of Wilkes’s motion for expunging from the journals the resolution of 17 Feb. 1769. He was a vigorous opponent of the anti-American measures, describing them as ‘the most violent, the most unjust and tyrannical, that ever disgraced the annals of any civilized nation’.
I am against the present war ... because I think it unjust in its commencement, injurious to both countries in its prosecution, and ruinous in its event. It is staking the fate of a great empire against a shadow. The quarrel which occasioned it, took its rise from the assertion of a right, at best but doubtful in itself; a right from whence the warmest advocates for it have long been forced to admit that this country can never derive a single shilling of advantage.
Ibid.
Adair made several speeches advocating Opposition measures of reform, and, as a Dissenter and advocate of the abolition of subscription to the 39 Articles, spoke for Sir Henry Hoghton’s bill for the relief of Protestant Dissenters, 10 Mar. 1779. In the debate, 28 Apr. 1780, on Burke’s economical reforms he ‘urged the absolute necessity of complying with the prayers of the petitions in regard to economy’, and he himself introduced a motion, 19 May, ‘relative to giving satisfaction to the people respecting the grievances set forth in their petitions— no more sums of money granted for the public services till grievances stated in the petitions be redressed’. According to the Parliamentary Register he ‘was up for nearly an hour, was very able, and remarkably well heard ... and proved in a most able and convincing manner, the indispensable necessity there was of taking some effective step for the relief of the people’.
Adair was not returned by Lowther in 1780, and does not appear to have stood at the general election, but in September 1782 unsuccessfully contested Southwark. He adhered to Fox, and as Pitt gained support in the City, Adair gradually lost ground, eventually in 1789 resigning his recordership— possibly over the Regency. He broke with Fox in 1793 over the war with France.
Adair died 21 July 1798. The Gentleman’s Magazine wrote (p. 721) in his obituary notice: ‘Mr. A. was not distinguished for luminous talents; but he possessed a solid judgment, with rectitude of principle, and a deep knowledge of the laws of this country.’
