How have presidential approval numbers looked a year before the general election

Gallup presidential approval numbers a year before the presidential election.

-- Harry S. Truman: 54 percent.

-- Dwight Eisenhower: 78 percent.

-- Lyndon B. Johnson: 44 percent.

-- Richard M. Nixon: 50 percent.

-- Jimmy Carter: 51 percent.

-- Ronald Reagan: 54 percent.

-- George H.W. Bush: 52 percent.

-- Bill Clinton: 51 percent.

-- George W. Bush: 55 percent.

-- Barack Obama: 43 percent.