Architecture: 1850s-1890s. 1850s. James Buchanan, at the urging of his niece and White House hostess Harriet Lane, added a wooden greenhouse on the roof of the west terrace in 1857, adjacent to the State Dining Room. One could enter a private world of plants and flowers grown for decorating the house.
A caucus is a meeting of supporters or members of a specific political party or movement. The term originated in the United States, but has spread to Australia, Canada, New Zealand, South Africa, Brazil and Nepal.
Party Caucus Law and Legal Definition. Party Caucus refers to a meeting that party members attend to decide policies and choose candidates to run for office. It is a group of leading politicians of one party. The political parties of the U.S. are chosen by this method. It is used to nominate individuals for the President and the Vice President.