Sumner, a nabob’s heir, had no intention of being left out of Parliament on relinquishing his rickety seat at Ilchester. In April 1789 Sir Gilbert Elliot reported:
My tenant Mr Sumner is to stand for the county of Surrey on Pitt’s interest. It is thought a strong measure to start a young nabob for a county who generally like old families. This Sumner, at a meeting in Surrey lately, asked ‘Who are these Russells? Who has heard of the family of Russells in the county of Surrey?’ He was talking of the Duke of Bedford’s family.
Minto, i. 298.
In the event he withdrew his pretensions to the county and successfully challenged Chapple Norton, Lord Grantley’s brother at Guildford, a bold step since the Nortons had occupied one seat there since 1768, as well as supplying a Member for the county until the year before. Unlike them, he was committed to Pitt. He was listed hostile to Test Act repeal in 1791. In speeches of 17 and 20 June 1794, he regretted that he could not concur in Pitt’s vote of thanks to the managers of Warren Hastings’s impeachment. As a great admirer of his father’s friend Hastings he had previously acted as teller on his behalf; he reserved his anger for Edmund Burke, but failed to thwart the motion by 55 votes to 21. He was a government teller on 16 May and 30 Dec. 1794, but was at odds with them over proposals for the Prince of Wales’s establishment in 1795, and on 1 June sought to amend them to prevent their application to the payment of the Prince’s debts. His bid was defeated by 266 votes to 52. On 8 June he expressed a wish that the Prince might not be made liable, as surety, for his brothers’ debts. He opposed the abolition of the slave trade, 15 Mar. 1796. He made an unsuccessful attempt to amend the dog tax, 27 Apr. 1796. He was a champion of the veterinary college and promoted public grants for a farriery there in 1795 and 1796. Writing to Pitt on 27 Mar. 1798 he renewed this subject and informed the premier that he had taken up farming.
Sumner had not sought re-election at Guildford in 1796. He would not risk failure? The Treasury listed him among their candidates in quest of a seat, but he remained out of the House for ten years. In 1806 he took advantage of discontent over local issues at Guildford to challenge the Grantley interest again. He succeeded after a fierce contest, only to be unseated on petition and narrowly defeated at the ensuing election in 1807. He was prepared to petition, but was encouraged by the co-patrons of Guildford to offer himself for the county at the last minute: they supported him to be rid of him. He was, after all, the downfall of the Russells in Surrey, defeating their Member Lord William. He described himself as ‘a friend of the late Mr Pitt but not of all his measures’—with reference to the Catholic and slave trade questions—and had ministerial support.
Sumner’s friend the 4th Duke of Richmond recommended him to the ministry for some official employment, but he spoilt his chances after they had named him for the finance committee. Unexpectedly, he warmed to the chairman Bankes’s campaign against sinecures. It was in vain that Canning advised Richmond to give Sumner a ‘general hint’, and he was dropped from the committee in 1809.
Listed a Treasury supporter in the Parliament of 1812, Sumner was a staunch, if silent, opponent of Catholic relief: his cousins were Anglican bishops. He had championed the Speaker against Morpeth’s censure, but was absent the day it came on, 22 Apr. 1814.
After Perceval, no minister engaged Sumner’s sympathies and he became more interested in airing local grievances in the House. His bill for the better preservation of county records (4 May 1813) came to grief.
When the question of the financing of a new London prison was revived in 1818, Sumner passed to the offensive and sought to prevent the City from applying the Orphans’ fund to it, 24 Feb. He complained, 21 May 1818, 1 Feb. 1819, that the corporation were obstructing his efforts to judge from facts, rather than their claims, that they could not afford to finance the building; and fearing that a supplementary duty on seaborne coal, which would affect all the home counties, would be resorted to, he championed the equalization of coal duties throughout the country; but his motion for the repeal of the sea coal tax was opposed by ministers and defeated by 151 votes to 49, 20 May 1819. He complained to Lord Liverpool, 4 May 1820, that he did not enjoy ‘the slightest consideration or influence with a government with whom I have strenuously acted (and with few exceptions to their measures), for the last thirty years’. But according to Liverpool he courted unpopularity—‘His temper and his manners are considered as offensive and overbearing’.
