 On the accession of George I Earle entered into political life, and was elected Member of Parliament for Chippenham at the 1715 general election.Earle's connection to the Duke of Argyle had lasted for twenty years, and was so marked that Sir Robert Walpole, in a letter written in 1716, styled him 'the Duke of Argyll's Earle'.Through his intimacy with the Duke of Argyll, who was Groom of the Stole to the Prince of Wales, he exerted himself in the autumn of 1716 in promoting addresses of congratulation from Gloucestershire and the adjacent counties to the prince on his success as regent during the absence of George I in Hanover.