D. A. Thomas was much disappointed when he was not offered Government office after the Liberal election victory of 1906. Unlike Herbert Lewis and Lloyd George, more had been expected from Thomas in 1894, and his actions in joining the revolt had not endeared him to the Liberal leadership. Thomas became increasingly disillusioned with politics, and left parliament at the December 1910 General Election, apparently a political failure. Certainly, his early promise had not been vindicated. In many ways Thomas was not suited to party politics and he was described by Stuart Rendel as 'a Tory in disguise. His greatest political success came later, during the wartime coalition (see below).