Neoconservativism is a real ideology, with real writings and a history, and people who acknowledge being followers of it.

Searching "Team B" for it's history, of "Leo Strauss" for it's ideology is a good starting point for people interested in this topic.

The actions of the G.W.B. administration are actually fairly understandable when you consider that most of his cabinet was from Team B.

As for Obama, all indications of his pre-presidential history is that he is ideologically traditional liberal, applying the term to him is problematic, even though his actions in office could indeed be described as neoconservative.

This makes him far more difficult to assess.