With their majority under threat, the Republican leaders in the House are in no mood to surrender the money advantage that the existing campaign-finance system gives them.

ECONOMIST: If in doubt, spend

They focused their work on a chemical messaging system in the brain already known to play a key part in the regulation of mood and anxiety.

BBC: Chemical clue to baby blues found

How the tax system treats the industrious or fortunate rich says a lot more about the social and political mood than about revenue-raising.

ECONOMIST: A fresh political row over the taxation of high earners