I did do my research, but I also do not believe everything politcians say. He said they were published without his permission, but we don't really know, do we? Besides your claim of all Libertarians believing in equality for all simply isn't true. Look at David Duke, former leader of the KKK. He calls himself Libertarian, and he's racist. Here's a quote on Libertarianism from Wikipedia:

Libertarianism is a label used by a broad spectrum[1] of political philosophies which prioritize individual liberty and seek to minimize or even eliminate[2] the state.[3][4] What it means to be a libertarian in a political sense is a contentious issue, especially among libertarians themselves. There is no single theory that can be safely identified as the libertarian theory, and probably no single principle or set of principles on which all libertarians can agree.[5] Libertarian is most obviously, however, an antonym of authoritarian.[6]
Libertarians believe in limited government support, not necessarily equality for all races. Some Libertarians might believe this, but there are others who do not. Show me definitive evidence that those papers were published without permission. There were too many newsletters with negative racial conotations for him not to have known about it. Do some research .