Joe Biden
Joe Biden looks set to battle Donald Trump for a second time in November.
  • The "misery index" adds up the rates of unemployment and inflation.
  • In the past, it's been a good indicator of whether a president will be reelected.
  • But there are signs the gauge may now be broken, with many people still gloomy about the economy.

The gap between how economists and many people feel about the state of the nation has rarely been so wide.