[lewislynn]

Why do they do 'head to head' matchups as if there isn't a 3rd Party present?

Maybe you should ask them. Or maybe because no one cares about the clueless liberal disguised as a Libertarian

[fortheDeclaration]

It is weird to take a poll about a the absence of a 3rd Party candidate when there is one on the ticket.

It is an irrelevant question, unless they are trying to find out who the 3rd Party candidate is hurting most.