Libertarians I've seen in politics recently have been very rightwing, imo way, way to much so but that's a very small sample size.
I also consider within America centrist's to be republican because of how the political media works (to be able to talk with a lot of the republican administration you have to be reasonably rightwing and support conservative policies making centrists seem frequently, though definitely not always republican. Most people seem to consider me very, very liberal (not totally relevant but my school last year had the first openly gay teacher in the US- at least that's what they told us.
