Quote Originally Posted by BanginJimmy
I'm not all together certian that a presidential nominee has to go through a background check. Obama has a few people in his past, plus his drug usage that would disqualify them from getting a secret clearance, not to mention presidential.
Yeah, they do. There have been several articles and books written about what information has been found as a result of these background checks. If you want me to name some, I will be responding for quite a while. So, if you want find some, try an academic search engine such as Infomine or Academic Search Complete.

Drug usage doesn't disqualify a person from a security clearance, but a drug conviction will. Again, I have gone through this process and they will found out everything about your past, trust me on that.