Paul Krugman says there are no more libertarians. (He's right that Rand Paul isn't one.) He's exaggerating, but there is a tendency for people to divide into the old left/right. The Sad Puppies started out as a libertarian movement, and now they're in bed (as it were) with a Nehemiah Scudder theocrat and a guy who screams about exterminating human vermin because two girls held hands on a TV cartoon.
ETA: Once again, File 770 provides a roundup for those who want to look away, but can't,