No -- Bush specifically announced the doctrine as a doctrine. He has redefined it several times -- but it does have a conceptual nucleus. Any serious student or aspiring practitioner of foreign policy should have enough of an understanding of the doctrine to have an opinion about it -- even if the opinion is that it is so ill-defined as to be impossible to implement.
Palin's problem is not just that she didn't understand the Bush doctrine. It is that she didn't seem to have a clue that foreign policies are defined by and made up by doctrines.
This article makes the point well:
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In defining the Bush doctrine as “Bush’s world view” – Palin failed to
understand how foreign policies work, and what a foreign policy
doctrine is. I am shocked that an American could graduate from Middle
School with this lack of knowledge. I remember being taught about the
Monroe Doctrine (no European colonization in the Western Hemisphere)
and the Truman Doctrine (that the U.S. would support free people in
their attempt to resist Soviet domination). Since then, I thought that
the Reagan Doctrine (that the U.S. would assist anti-communist
resistance movements in their attempts to throw off Soviet domination)
and the Powell Doctrine (the doctrine setting up the criteria for a
well-grounded military role in foreign policy – disregarded by W) were
common currency among anyone who was paying attention to American
foreign policy.
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Now,
I would not have expected all, or even most, citizens to know about the
ins-and-outs of our nation’s foreign policy doctrine (but I would
expect most Americans to at least know what a foreign policy doctrine
is – and to remember the Monroe Doctrine). However, I do expect any
person seeking Federal office to know these details and this history.
Palin does not – and it is as humiliating (for our nation) as it is frightening (for our world).
Beathan