“What is the truth on Graham? Is he a legitimate preacher or not?”
If you mean that God has spoken through him, and his ministry has brought people to God, absolutely legitimate:
http://www.youtube.com/watch?v=7i95RXDyY70
Yes, or whether or not he really holds Christian beliefs. One person claims he is a Clinton Democrat. Another has a video of him, seemingly, promoting universalism, and another posts him condemning religious cults, and still another, and another. It’s quite confusing.