Which is a vote for the trailing candiate.
Historically, a third party vote is a wasted vote going to a candidate with no mathematical chance of winning a single electoral vote for president.
However, the few viable 3rd party candidates who actually received electoral votes wound up splitting the popular and electoral votes 3 ways instead of 2. That means there's a smaller pie -- i.e. if the 3rd party candidate gets any electoral votes, it's that much harder for the GOP and Dim candidates to achieve the required 270.
If no candidate wins at least 270 electoral votes, the House of Representatives, choosing from among the top three electoral college finishers, elects the president by simple majority vote. The Senate selects the VP, who may or may not be from the same party.
Ordinarily, a 3rd party candidate aligns more with one type of voter than the rest. Ross Perot was ultra-conservative, and therefore "stole" the votes GHW Bush needed to defeat Clinton. Most Green Party, Libertarian or Independent candidates tend to appeal more to Liberals, and because of RFK's family's history as well-loved Democrats, it's reasonable to predict Democrat voters may decide to abandon the horrible Biden/Harris ticket in favor of a better option. That would hurt Biden and help Trump.
So, based on all of that, I strongly encourage anyone who deosn't support Trump and is not happy with Biden to vote 3rd party.
