There are a number of possible explanations. He may be too stupid to recognize the contradiction- but I doubt it. He may be totally cynical, not caring whether he contradicts himself or not. Perhaps he is a true satanist, and a better actor than Ronald Reagan, duping the public with pretended piety. He may have multiple personalities, so that the pious Christian within him is not aware of the bloodthirsty torturer, and vice-versa. He is so secretive and so scripted that it is hard to know what the real person is like.
Bush sees himself as ruler rather than as public servant. Perhaps the simplest explanation for the invasion of Iraq is that Bush needed a war so that he could be a war president, and claim war powers for himself as the commander-in-chief of a nation at war.
Bush's regime is founded on stirring up hatred, of Christians towards Muslims, of native borns towards immigrants, of poor toward rich. His methods are hateful- smears, cheating on voting, blackmail and intimidation, spying and sneaking, torture called something else, secret detention centers, etc.
1 John 2: 11Whoever hates his brother is in darkness;
he walks in darkness
and does not know where he is going
because the darkness has blinded his eyes.
He will not succeed in taking us all there with him.
In the name of the Prince of Peace, Carol Wolman