The political context influences newspaper ownership and regulation in several ways. Newspaper ownership is concentrated among a few large companies, with the top three owners controlling over 80% of daily circulation. This concentration decreases quality and choice. The Guardian and Daily Mail differ in their ownership and regulation - The Guardian is owned by the Scott Trust which protects its editorial independence, while the Daily Mail has a proprietor who can influence its political stances. Regulation also affects newspapers differently based on their political alignments.