Approval Typically Falls 5 Points in a President's Second Year - http://www.gallup.com/poll...
"Most of the last eight elected U.S. presidents, starting with Dwight Eisenhower, saw their approval rating drop in the second year of their presidency -- on average by five percentage points. According to Gallup historical data, only George H.W. Bush and George W. Bush avoided a second-year drop; Jimmy Carter and Ronald Reagan experienced the greatest declines in public approval from year one to year two." - Frankie Warren