The Tea Party is synonymous with anger. Anger defined it. Anger fueled it. Anger marred it. Anger became its face and its heart. But anger is too exhausting an emotion to sustain.

A poll released Thursday by the Pew Research Center found that anger at the government among Tea Party supporters fell by 40 percent from September 2010 to this month. Furthermore, anger among Republicans fell by more than half, and anger among whites, the elderly and independents fell by 40 percent or more.

On the other hand, the percentage of Tea Party supporters who said that they trusted the government always or most of the time doubled from last March to this March, and the percentage of Republicans saying so nearly doubled. In fact, the percent of both Republicans and independents saying so is now higher than it has been since January 2007.