1.5 million people were told that extreme conservatives are happier than political moderates. Approximately .0001 million Americans learned that the opposite is true.

From Brooks op-ed in NYT:

People at the extremes are happier than political moderates. . . . none, it seems, are happier than the Tea Partiers . . .

Sociologist Jay Livingston, giving data from the 2009-2010 General Social Survey, which is the usual place people turn to for population data on happiness of Americans:

The GSS does not offer “bitter” or “Tea Party” as choices, but extreme conservatives are nearly three times as likely as others to be “not too happy.”

Details here (following up on an earlier Monkey Cage item).