All and Performance Within the Context of His Times—with each category equally weighed. The results of all four C-SPAN surveys have been fairly consistent. Abraham Lincoln has taken the highest ranking in each survey and George Washington, Franklin D. Roosevelt, and Theodore Roosevelt have always ranked in the top five while James Buchanan, Andrew Johnson, and Franklin Pierce have been ranked at the bottom of all four surveys. The 2010 Siena poll of 238 presidential scholars found that former president George W. Bush was ranked 39th out of 43, with poor ratings in handling of the economy, communication, ability to compromise, foreign policy accomplishments, and intelligence. Meanwhile, the then-current president Barack Obama was ranked 15th out of 43, with high ratings for imagination, communication ability, and intelligence and a low rating for background (family, education, and experience). In 2011, through the agency of its United States Presidency Centre (USPC), the Institute for the Study of the Americas (located in the University of London's School of Advanced Study) released the first ever United Kingdom academic survey to rate presidents. This polled the opinion of British specialists in American history and politics to assess presidential performance. They also gave an interim assessment of Barack Obama, but his unfinished presidency was not included in the survey. (Had he been included, he would have attained eighth place overall.) In 2012, Newsweek magazine asked a panel of historians to rank the ten best presidents since 1900. The results showed that historians had ranked Franklin D. Roosevelt, Theodore Roosevelt, Lyndon B. Johnson, Woodrow Wilson, Harry S. Truman, John F. Kennedy, Dwight D. Eisenhower, Bill Clinton, Ronald Reagan, and Barack Obama as the best since that year. A 2013 History News Network poll of 203 American historians, when asked to rate Obama's presidency on an A–F scale, gave him a B- grade. Obama, whom historians graded using 15 separate measures plus an overall grade, was rated most highly in the categories of communication ability, integrity, and crisis management; and most poorly for his relationship with Congress, transparency, and accountability. A 2015 poll administered by the American Political Science Association (APSA) among political scientists specializing in the American presidency had Abraham Lincoln in the top spot, with George Washington, Franklin D. Roosevelt, Theodore Roosevelt, Thomas Jefferson, Harry S. Truman, Dwight D. Eisenhower, Bill Clinton, Andrew Jackson, and Woodrow Wilson making the top 10. APSA conducted a repeat of