After his service in America,1W. M. MacBean, Biog. Reg. of St. Andrews Soc. of New York (1922), i. no. 52.Campbell seems to have lived in comparative obscurity until 1776 when, during his brother Archibald’s absence abroad, he took charge of his electoral interests in Stirling Burghs, became provost of Inverkeithing in 1777,2W. Stephen, Hist. Inverkeithing, 227. and succeeded him as Member in 1780. In Parliament he consistently voted with every Administration: North, Shelburne, the Coalition, and the younger Pitt; and Robinson in January 1784 recognized that he would always support the party in power.3Laprade, 99.
He was returned in 1784 after a contest. He voted for parliamentary reform on 18 Apr. 1785, but did not vote on the Regency. There is no record of his having spoken in the House. When his brother Archibald, to whom he was under great obligation, returned from India in June 1789, James promptly vacated his seat in his favour.
He died 16 Mar. 1805.