Christopher Hitchens says that people who describe themselves as foreign policy realists are supporters of the Saudi royal family.
While some realists may be close to the Saudi family, their lineage goes way back before their regime in Riyadh. And it's an honorable and savvy school of thought.
Realists trace their approach back through the Federalist-Republican tradition, beginning with George Washington, John Adams, and Alexander Hamilton and proceeding through such figures as Thedore Roosevelt and Dwight Eisenhower.
See my post on the three major strands of foreign policy/national security thinking in US history here.
(Thank you to Glenn Reynolds for leading me to the Hitchens piece.)