...In an effort to explain what Rand Paul meant when he suggested that private businesses should be able to discriminate against black people, most writers have assumed that the Tea Party fave is no racist but instead a dogmatic, don't-tread-on-me libertarian. As TPM convincingly points out today, the GOP's Kentucky Senate candidate's (now recanted) statements about the 1964 Civil Rights Act fall well within the libertarian mainstream.
It would be a mistake, however, to assume that Paul's views are motivated by little more than a naive ideology. As I've noted, Paul and his father, GOP Congressman Ron Paul, have a long history of close associations with hard-core racists. And moreover, Paul is by no means a rigid libertarian. In reality, Paul and his father espouse a hybrid of libertarian and Republican political beliefs that skews far to the right of typical libertarians:
Abortion
While most libertarians are pro-choice, both Rand and Ron Paul support government regulation of abortion. Ron Paul would leave the issue up to states while Rand Paul favors a constitutional amendment banning the procedure...
http://www.motherjones.com/mojo/2010/05/how-libertarian-rand-paul