everywhere...and when, with good and effective leadership, they coalesce around reasonable policy initiatives...like the bipartisan Senate Border Security and Immigration Bill...or the bipartisan Infrastructure Bill...or the bipartisan CHIPS Bill...the country can make lives better for ALL Americans, regardless of Political Persuasion.
Right now, we have ANYTHING BUT a "Bipartisan" President, who is on a Chaotic Rampage, and since he represents the Conservative minded members of our society, it's up to them to take the lead in reining him in.
As for Libertarians...I find them to be "Sideliners"...i.e. Weak and Unwilling to get in the arena and actually serve ALL Americans...all they do is pontificate about some Utopian Ideals, without ever having to answer for their theories. Take a look at the linked article by a former Libertarian.
Link: https://publicseminar.org/2016/11/why-i-am-not-a-libertarian/