Wakeforest22890
Snowpom
I can help you with this. No one is a clear leader until the primary votes have been cast. Most poll respondents are almost certainly not GOP primary voters. Many may not be GOP or registered voters at all. For example, right now Cruz is running away from Trump in the polls that do reflect Iowa primary voters' sentiments. If Trump is crushed in Iowa, his aura could dim pretty quickly. I know Dems enjoy trying to tar the GOP with Trump, but you are getting way ahead of yourselves.
I don't mean this to be condescending but what do you mean "[m]ost poll respondents are almost certainly not GOP primary voters?" You think people answering these questions are lying about being GOP primary voters? Polls use either "registered voters," "voters," or "likely voters" in their sampling and cross-section for voters in each party.