Palin (who I love) and Bernie Sanders (who I don’t like), have had huge crowds come to see them. This is not a barometer as to who can win an election, especially this far out in the election cycle. Yes, McCain, did no favors to himself, but, as you recall, Palin’s rally’s were right before the end. My point being, big crowds don’t necessarily mean ballot box results.
Point taken, however very different circumstances. Palin was VP candidate running with a weak Pres candidate. Trump is the candidate and has been having these crowds from day one. Ask Cruz and the others if they’d like to have crowds like that.