I can think of two instances that a third party vote helped the republicans.
Don't remember all the details.
Votes for the Green Party hurt Hillary in 2016.
When Ralph Nader ran for President in the 60s (I think) it took enough dem voters away to elect the pub at the time.
In post #9 I didn't say anything about voting third party or imply it.
Only that Libertarian/Constitutionalist doesn't fit Trump
Plato once said, “Wise men speak because they have something to say. Fools, because they have to say something.”
"Fere libenter homines id quod volunt credunt." "Men willingly believe what they wish to believe."
Julius Caesar
There's no natural calamity that government can't make worse.
Bill Bonner