This may be from a comedy bit somewhere or it may be something I made up. I'm not sure.
I believe there are only really three types of politicians.
1. The Honest Politician - Yes, there ARE honest politicians. These are people who truly get into politics to serve others. They don't make huge waves and they don't get huge publicity except when they vote against the party line because it is best for their constituents.
2. The Addict/Coper - The second type of politician is the addict or coper. Maybe they got into politics for good reasons, but eventually the money and power took hold of them. They lie and do what is necessary to retain their status/power but have a hard time dealing with it. Deep down, they feel guilty. Behind closed doors they are alcoholics, drug addicts, or sex addicts. They are never truly happy because they can't live with themselves.
3. The Sociopath - Sadly, there are a LOT of sociopaths in politics. These people will gladly lie straight to your face, gut you when you turn around, and not wipe the smile off their face while doing it. These people do not care who they take advantage of, who they lie to, who they have sex with, or who they fuck over, so long as it is in their best interests. Sadly, I believe many presidents and presidential candidates can fall into this category.
Clinton - (Either Bill or Hilary) Sociopath
Trump - Narcissistic Sociopath
Biden - Senile Sociopath
Bush Jr - Clueless Sociopath
Bush Sr. - DEFINITELY A SOCIOPATH
JFK - Did great things but think about it, all the women, lies and deceit? SOCIOPATH
Nixon - Sociopath
Note: I didn't put Obama in here. I don't believe he is a sociopath. Probably manipulated by others and definitely walked the democrat party line, but I cannot in good faith say I think he is a sociopath.