Know world geography:
At a press availability today, John McCain expressed concern about relations between Russia and a country that hasn't existed for quite some time:
"I was concerned about a couple of steps that the Russian government took in the last several days. One was reducing the energy supplies to Czechoslovakia. Apparently that is in reaction to the Czech's agreement with us concerning missile defense, and again some of the Russian now announcement they are now retargeting new targets, something they abandoned at the end of the Cold War, is also a concern."
Czechoslovakia, of course, split into two separate countries in 1993.
McCain has failed rule one on numerous occasions. Another "senior moment", or just plain ignorance? Either way, do we really want him running this nation? I would say NOT!