Although quiet and somewhat lonesome in parliament, O'Merle was not afraid to stand up for issues he opposed or supported, many of which involved policies introduce during the Great Depression and Second World War. He was a strong monarchist, which reflected most of his political agenda. Upon becoming Prime Minister in 1948, many important events occurred in his tenure. O'Merle is credited for post war reconstruction, Eduarda joining the Antarctic Assembly and also being one of the principle founders of the British Imperial Confederation. .