Although he sat in the House of Commons for almost forty years, Arbuthnott, known in Kincardineshire as the General, ‘scarcely ever took part in its debates’.
After serving in the French Wars, including in the Iberian Peninsula with the duke of Wellington, Arbuthnott was returned unopposed for Kincardineshire at the 1826 general election. He benefited from the backing of his brother John, 8th Viscount Arbuthnott, who was a Scottish representative peer, from 1818-20 and 1821-47, and the Liverpool ministry’s Scottish manager Robert Dundas, 2nd Viscount Melville.
At the 1832 general election Arbuthnott faced his first and only challenge as MP for Kincardineshire, winning an easy victory against a Reformer after receiving the backing of most of the local landowners.
In the first reformed Parliament, Arbuthnott supported the motions of the Attwood brothers for currency reform, 21 Mar., 24 Apr. 1833. He backed the motions of the marquess of Chandos for agricultural relief and Sir William Ingilby’s proposal for a reduction in the malt tax in 1833 and 1834. In 1835 he voted with Peel’s Conservative government in the key divisions on the speakership and the amendment to the address in February 1835. Despite his previous votes, Arbuthnott rallied to support Peel’s government in dividing against Chandos’ proposal to repeal the malt tax, 10 Mar. 1835. In the later 1830s Arbuthnott’s staunch support for the Protestant establishments of the United Kingdom was reflected in his antipathy to Irish church reform and the abolition of church rates. He opposed political reforms, including the ballot, as a matter of course, and continued to divide with the Conservative leadership on all key party votes, including the motions of no confidence in the Whig government, 31 Jan. 1840, 4 June 1841.
A strong protectionist, Arbuthnott backed Peel’s 1842 sliding scale on corn, but opposed the repeal of the corn laws in 1846. By the latter date he had already become estranged from the ministry after the introduction of the 1845 Maynooth college bill, which he opposed. He later told constituents that ‘I have always been a zealous supporter of the Protestant Constitution … I have always been opposed to Papal aggression, or the interference of any foreign power in the domestic affairs of this kingdom’.
In the late 1840s and 1850s Arbuthnott generally voted in around 10-25% of the divisions in each session.
The octogenarian Arbuthnott announced his retirement at the 1865 general election.
