I'm aware of those reports. If you believe that will translate into votes, then Trump should win by double digits nationally. I hope you're right, but even I'm not that optimistic.
Statistics about the rallies are from the sign-ups, from the people who register for the free tickets. They are not from the people actually attend. It is possible that the 15 to 25% who are who are Democrats don’t actually go to the rally. When I attended a rally, the ticket was not scanned to enter the rally. I wish that they were, then we would know exactly who was at the rally.