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.
The Senate Democratic Caucus (or Conference) is the formal organization of the current 44 Democratic Senators in the United States Senate.n addition, Reid added additional positions to the caucus leadership, following the loss of Majority status in the Senate in the 2014 Senate elections 1  : Senator Elizabeth Warren (MA) as Strategic Policy Advisor to the Senate Democratic Policy Committee.