The Libertarian Party Mises Caucus (LPMC) is a caucus within the United States Libertarian Party that promotes paleolibertarianism and a more radical version of libertarianism associated with the presidential campaigns of Ron Paul. It was founded in 2017 by Michael Heise, mainly in opposition to Nicholas Sarwark's position as party chairman, and the more pragmatic faction of the party associated with the presidential campaigns of Gary Johnson. It is named after classical liberal economist Ludwig von Mises.