Assuming that they did, don't you think that it would have been logical to assume he could never get elected ? Back then, how many people would have believed it ? Even though it has been proven true, approx. half the US population still doesn't believe it.
President Bush wasn't running against Obama. He had no 'campaign' fund or staff. Most of the so called 'government' wanted to see him dead. If he had come out and claimed Obama was a fraud, the media would have arranged to have him hanged, on LIVE TV. Besides, the 'presidents' have a secret 'compact' that the current president cannot divulge any incriminating information on past presidents (unless the current President is a democrat or socialist or communist).
Doesn't mean squat. The JOB of the President requires protecting this nation from ALL enemies, foreign and DOMESTIC. He and his intelligence knew who Obama was and did nothing. This is far worse than the nothing Obama did in Benghazi. Bush did nothing to defend America against the direct threat of enemy infestation into all levels of our Federal government that Obama would bring. In addition to serving as the golf tee for Obama's white house golf ball, Bush also provided the club (DHS) to hit that ball with. Bush deserves being a four-letter word.