| Constituency | Dates |
|---|---|
| Carmarthen | 20 Dec. 1813 – 1820, 1820 – 1 June 1821 |
Ld. lt. Carm. 1852 – d.
Cornet, Castlemartin yeomanry 1807, capt. commdt. 1811.
Campbell was sure of a seat on his father’s interest as soon as he came of age, but Lord Cawdor was over-ambitious in putting him up for Pembrokeshire in 1812; he was defeated by John Owen. He fell back in the following year on Carmarthen borough, where his uncle George made way for him: he found the seat irksome and relied on his father to maintain the interest. In 1818 Cawdor had to constrain him to face his election, which was keenly contested. Neither then nor in 1820 could he undergo chairing, owing to the risk of mob violence, and on succeeding his father to the title in 1821 he abandoned the interest for a time.
Like his father, he supported opposition in Parliament. He voted with them on the blockade of Norway, 12 May 1814, for a committee on the Bank, 2 Mar. 1815, for Whitbread’s amendment to the address, 7 Apr., against the transfer of Genoa, 21 Feb. and 27 Apr., for Tierney’s civil list committee 8 May, on the Regent’s address 25 May, and against the grant to the Regent, 31 May. On 30 June and 3 July he opposed the Duke of Cumberland’s establishment bill. In February and March 1816 he voted steadily for retrenchment and against the renewal of the property tax, and so he continued. On 9 May 1817 he supported Catholic relief. In June 1817 and the spring of 1818 he regularly opposed the suspension of habeas corpus and its consequences. On 1 May 1818 and 2 Feb. 1819 he voted for the resumption of Bank payments. He supported Mackintosh’s committee for criminal law reform, 2 Mar. 1819, and the reform of the Scotch burghs, 1 Apr., 6 May. He supported Tierney’s censure motion, 18 May. In June he opposed the estimates and the foreign enlistment bill. He voted against the address, 24 Nov. 1819, for a committee on the state of the nation, 30 Nov., and for limitation of the suspension of habeas corpus, 6 Dec.
Campbell seldom figured in debate, but Lord Liverpool described him, 13 Sept. 1816, as ‘in decided opposition’.James Scarlett he withdrew them with a view to revising them, and on 1 June 1820 he obtained the appointment of a select committee on the subject. In this he was strongly opposed by his rival for the Carmarthen seat, John Jones. As Lord Cawdor, he failed to obtain the lord lieutenancy of Pembrokeshire in 1823, because of his opposition politics: