Second terms aren’t easy. We remember one-term US presidents like Jimmy Carter and George H.W. Bush as “losers”, but only presidents who make it to a second term have the chance to be remembered as genuine catastrophes.
The most unpopular living president is George W. Bush, whose self-congratulatory mishandling of Hurricane Katrina made Americans re-evaluate the disaster unfolding in Iraq. Nixon won 49 states in 1972 then used his office to persecute his enemies so obsessively and illegally that he nearly destroyed public trust in the institution of government.