On the death of his Whig father in 1814, Power had been seated in his place for county Waterford with the support of the 6th duke of Devonshire. He had joined Brooks’s, sponsored by Lord Fitzwilliam, 24 Feb. 1815. At the 1820 general election he stood again. Talk of an opposition came to nothing and he was returned unopposed.
At the 1826 general election he offered again with the exclusive support of Devonshire, citing his family’s ‘long and tried services’. He surreptitiously assisted the Association campaign against his anti-Catholic colleague Beresford, and was returned in first place.
At the 1830 dissolution it was rumoured that he would retire, it being noted by a Beresford agent that the resignation of his cousin and brother-in-law Robert Shapland Carew, Member for county Wexford, who had been ‘certain of his return’, ‘may influence’ him.
