Well, the GOP must like some of the ideas of libertarians and vice versa since these two groups have been pissing through the same quill now for decades.
Most libertarians I know have no friend in the GOP. I know a lot of GOPers who like to think they are libertarians except when it comes to abortion, women, sex, homosexuality, drugs, the military, geopolitics, personal rights, crime and punishment, corporatism, cronyism, smaller government...etc. The only big issues they tend to agree upon are taxes and guns.
How these doughheads think Ronald Reagan was a great libertarian just blows my mind. Nearly everything he did was statist.