http://www.america.govpublications/ejournalusa/the-candiates/roles-and-responsibilities.html.rss http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020151313bsibhew0.9420893.html The U.S. Constitution outlines the president’s authority but is flexible enough to allow each incumbent to define the scope of presidential powers. http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020151313bsibhew0.9420893.html Mon, 29 Sep 2008 10:41:11 -0400 http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020155306bsibhew0.9867016.html The vice presidency of the United States has grown in importance as the demands of the presidency have increased. http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020155306bsibhew0.9867016.html Mon, 29 Sep 2008 10:41:39 -0400 http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020170534bsibhew0.3362193.html Since Martha Washington in the 18th century, first ladies of the United States have fulfilled this unique role according to their own interests and the times they lived in. http://www.america.govhttp://www.america.gov/st/elections08-arabic/2008/October/20081020170534bsibhew0.3362193.html Mon, 29 Sep 2008 10:42:53 -0400