The LP made a strategic mistake decades ago when they decided to waste their limited resources on presidential races rather than local races. If they had chosen to go after aldermen, mayors, and state legislators, they could well be considered a serious party today because they would have a solid support base. As it is, they have virtually nothing other than a presidential campaign doomed to failure.
The idea was that a presidential campaign would bring them attention. It has not worked. They need to adjust their plan. I support much of their political ideology, but I have a hard time wasting a vote on a party that is essentially a single race party.