I believe that Thomas Jefferson was really hypocritical in his "real" life, personal life outside of politics and philosophy. He wrote the Declaration of Independence where he said that "all men were created equal" and that everybody deserves to be free. However, he himself was a slave owner, he had many slaves and he did not want to set them free.
Whips in Congress are on both sides (Republican and Democrat) and their main function is to make sure their party's congressmen vote alike and together on an issue.
