I've started to dig into the internals a bit and have found a couple items that should be of interest:
1. The polling population started out as 3000 randomly selected voters. That number currently stands at 3200 and is expected to grow to around 6000 by November.
2. Everyone in the population gets to vote once a week with 1/7 of them voting each day.
3. These votes are then “weighted” based on the known demographic makeup of the voting population and added to the previous 6 days votes and then averaged to get the daily poll.
4. The Poll Date that is shown on the Poll is not TODAY. It is YESTERDAY since that's when the most recent polling was done. So today's Poll is dated 7/31/2016.
5. Trump is leading in the poll but trailing by a significant margin in the poll of “Who Do You Expect To Win In November”. I'm assuming that will change with time but it is interesting.
6. The Polling Methodology described above can be found in detail at USC Poll Survey Methods and then clicking on the Survey Methods Tab.
7. Todays's results are highly favorable to Trump. At least for a day or two the "Hillary Bounce" has lost it's steam. But we have all this week to wait for all the post convention votes to be recorded. So a word of caution is advised.
8. Here are today's trend line which shows Trump holding his lead and the Hillary Bounce flattening out.:
