Der Spiegel:

Most of all, however, in the debate in Boca Raton they declined to discuss how they intend to address the country’s central foreign policy conundrum: Americans no longer want their country to be a global police force, but they still want to continue believing in American exceptionalism.

After all, following the 90 minutes of debate in Boca Raton, 1980s US foreign policy seems modern and cosmopolitan by comparison.

Why is it so hard for the USA to dream up a new future for itself?