In 1911, Kinloch became the election agent for Josiah Wedgwood, Liberal Party MP for Newcastle-under-Lyme, and immediately began setting up permanent organisation committees in each ward in Wedgwood's constituency. He built links with the local Labour Party, which encouraged its members to attend meeting where Wedgwood spoke on progressive issues, thereby reducing the influence of the right of the Liberal Party, who were hostile to Wedgwood.[3] He became increasingly interested in the labour movement, and in 1914 joined the Independent Labour Party, principally due to its anti-war stance.[2] Wedgwood, for the time being, remained with the Liberals, so Kinloch returned to Scotland, and became a schoolteacher.[5]
Kinloch was next selected as the Prospective Parliamentary Candidate for Argyll. In support of this, in 1927 he went on a speaking tour of Mull, on which he was accompanied by John MacCormick. The two found that Scottish Home Rule was a more popular topic than socialism, Kinloch believing that the Labour Party was best placed to deliver it.[8]