I think Rand Paul is the worst thing that could have happened to Republicans. Even if he wins a general election, he could only open the doors for racicsts and loonies. His father didn't do much good either and is a danger for America's foreign policy.
While other loonies like Sarah Palin are decent people who stand no chance to gain any votes from liberals, the Pauls and their followers are not people I would want to run America. And it's sad that the "Tea Party" is open to everyone, from moderate conservatives to complete and utter morons.
So-called moderate Republicans are not RINOs, they are instead the real Republicans. The Republican party was not created to defend "states rights" or conservatism, let alone the white man's right to discriminate against blacks if he wants to. The party was created specifically to defend the rights of everyone, using violence if necessary. Anything else is RINO.