Only one candidate speaks of change.
Only one candidate has shown extreme knowledge on subjects like the federal reserve, war, foreign policy, and personal liberties.
Only one candidate has shown the overwhelming emotion, and representation of the American people.
Only one candidate is actually using the constitution to decide his side of topics, rather than his own personal opinion or the options of his religious background.

That candidate is Ron Paul.

Obama, Clinton, McCain, and etc. don't want change, they just want to keep "tweaking" this current system that has been put into places over these last few presidential terms and like so many of the Ron Paul supporter base, the American people are tired of it, and really really want change.