If someone is campaigning for the presidency or vice presidency, there's an extra twist. That person has to have a line of argument to offer on any conceivable issue. Quick, without pausing in the next ninety seconds, tell me what you think about: the balance of relations between Taiwan and mainland China, and exactly what signals we're sending to Hamas, and what we think about Russia's role in the G-8 and potentially in NATO, and where North Korea stands on its nuclear pledges -- plus Iran while we're at it, plus the EU after the Irish vote, plus cap-and-trade as applied to India and China, and what's the right future for South Ossetia; and let's not even start on domestic issues.
The point about every one of those issues is that there is a certain phrase or formulation that might seem perfectly innocent to a normal person but that can cause a big uproar. Without going into the details, there is all the difference in the world between saying "Taiwan and mainland China" versus "Taiwan and China." The first is policy as normal; the second -- from an important US official -- would light up the hotline between DC and Beijing.
The further point is that not even the most accomplished person knows all this off the top of his or her head. Example: Barack Obama. He is a quick study and has been campaigning very hard for 18 months. But this summer, when he tried to offer a reassuring message about his commitment to Israeli security with his AIPAC speech, he made a rookie error by getting the standard phraseology slightly wrong.
Let's assume that Sarah Palin is exactly as smart and disciplined as Barack Obama. But instead of the year and a half of nonstop campaigning he has behind him, and Joe Biden's even longer toughening-up process, she comes into the most intense period of the highest stakes campaign with absolutely zero warmup or preparation. If she has ever addressed an international issue, there's no evidence of it in internet-land.
The smartest person in the world could not prepare quickly enough to know the pitfalls, and to sound confident while doing so, on all the issues she will be forced to address. This is long before she gets to a debate with Biden; it's what the press is going to start out looking for.
So the prediction is: unavoidable gaffes. The challenge for the McCain-Palin campaign is to find some way to defuse them ahead of time, since Socrates, Machiavelli, and Clausewitz reincarnated would themselves make errors in her situation. And the challenge for Democrats is to lead people to think, What is she were in charge?, without being bullies about it.