Political parties limit power of the presidency
It might seem an improbable scenario, but no constitutional article could prevent Leo Varadkar from being president, writes Liam Weeks
Teddy Roosevelt and William Howard Taft served successive terms as American presidents in the early 1900s, but could not have been more different in their approach to the job.
Roosevelt was an all-action figure, seeking strongly to influence policy and make the presidency the most powerful political office in the land.
Taft, on the other hand, who had been Roosevelt's secretary of war, took a far more conservative approach to the post.