Original sentence: As in the past, groups promoting a  more strident interpretation of libertarian principles, such as the LPRadicals  and the Rothbard Caucus, have emerged in response
Edited sentence: As in the past, groups promoting a  more strident interpretation of libertarian principles, such as the LPRadicals  and the Rothbard Caucus,  have emerged in response.These groups advocate a clear, consistent,  and principled interpretation of libertarianism, and want the Party to  focus on constant outreach with a consistent message marketed by  candidates and the Party leadership