Comment by qrendel

Green Party is also an option if you want to protest vote. A problem, for some, with supporting libertarian candidates is that they (voters) may not be as fond of the low-hanging fruit policies most likely to get implemented (e.g. defunding many agencies, removing environmental protections) as the moonshot policies they also promote (e.g. ending the war on drugs and reducing the military-industrial-natsec complex). Even though neither 3rd party will ever win, the votes do send a message about which way policy adjustments should be made, so it's still worth some thought about what message you really want to send.