This document discusses how persuasive communication, such as that used in political campaigns on YouTube, allowed Barack Obama to be elected President of the United States. It suggests that Obama's campaign made effective use of YouTube to get their message out to many people and help increase his support. The document also argues that YouTube can be a very useful tool for persuasive communication in political and other realms since it allows information to spread widely without other more labor-intensive methods of in-person campaigning.