Jewish Libertarians:
Walter Block
Frank Chodorov
Moshe Feiglin
David Friedman
Patri Friedman
Glenn Greenwald
Henry Hazlitt (by mother)
Steve Horwitz
Israel Kirzner
Adam Kokesh
Ilana Mercer
Ludwig von Mises
Tonie Nathan
Murray Rothbard
Murray Sabrin
Irwin Schiff
Peter Schiff
Charlie Shrem
John Stossel
Aaron Swartz (הי״ד, זק״ל)
Eugene Volokh
Quasilibertarians:
Milton Friedman (libertarian conservative)
Ayn Rand (objectivist)
One huge weakness with Rand Paul that Obama has also is that he is a senator and has no executive experience. This can lead to cronyism, terrible decisionmaking, and incompetence. Andrew Jackson would be another example (save that one exception we admire). This gives me a little discomfort and would make Gary Johnson a stronger candidate. I am still annoyed at him for not running for Senator, but if he ran as a Republican*, I could support him.