Barrington, who sat only briefly in the Commons during this period, was an intimate of both Derby and Disraeli during their final months before death, even though the latter once described him as ‘stupid and uninteresting’.
Barrington was initially thwarted in his attempts to follow in his father’s footsteps and enter the Commons. He finished in third place at Buckingham at the 1859 general election, when he came forward as an unequivocal supporter of Derby’s ministry.
Barrington’s loyalty to the Conservative cause was rewarded in June 1866 when Derby, on becoming prime minister for the third time, appointed him his private secretary. The following month Barrington came forward for the Suffolk borough of Eye, on the recommendation of his ‘old friend of twenty-five years’ Sir Edward Kerrison, who had vacated the seat in order to contest the more prestigious Suffolk West.
Barrington is not known to have spoken in debate in his first Parliament or to have served on any select committees. He was, though, privy to the inner workings of the Conservative government, and ‘secret’ cabinet meetings were held at his London residence, 19 Hertford Street.
During the summer of 1867, Derby, on his sickbed with gout and rheumatism, was forced to dictate his correspondence to Barrington, who in turn, kept Disraeli closely informed about the premier’s ailing health.
Re-elected for Eye in 1868 and 1874, Barrington was appointed vice-chamberlain of the queen’s household in Disraeli’s second ministry and made a privy councillor. Despite Disraeli’s unflattering assessment of Barrington, he was, according to Stanley, ‘one of the few men to whom Disraeli chatted on the front bench’.
Shute died after being taken suddenly ill while on a shooting party at Grimsthorpe Castle, Lincolnshire, in November 1886.
