Please answer the following question: Daniel Webster Warner (October 1 1857 May 14 1933) was a farmer rancher and Canadian federal politician.Warner first ran for a seat in the Canadian House of Commons in the 1917 Canadian federal election in the Battle River district. He ran in that election as a Laurier Liberal candidate and was defeated in a close race by Unionist candidate William John Blair. Warner would run again in the 1921 Canadian federal election this time as a Progressive Party of Canada candidate. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Office Holder