The ABC News/Washington Post poll is seen as the most friendly to Bush post-9/11. It's conducted nationally among samples of voters -- samples determined by computer algorithms. The people that produce these polls are often hired by campaigns on both sides of the aisle for internal polling and tactics.
Here's an image showing where a multitude of polls have placed Bush's approval rating during his presidency:
Here's an image showing where a multitude of polls have placed Bush's approval rating during his presidency:
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