Well the USC poll is absolutely irrelevant. Their methodology is extremely flawed.
Quote:
The USC Dornsife/L.A. Times Presidential Election "Daybreak" Poll asks more than 400 people each day about their voting intentions. The poll is part of the Understanding America Study (UAS) at the University of Southern California's Dornsife Center for Economic and Social Research.
Each day's poll respondents are a subset of the UAS election panel, roughly 3000 U.S. citizens who were randomly recruited from among all households in the United States. Respondents are asked three predictive questions: What is the percent chance that (1) you will vote in the presidential election? (2) you will vote for Clinton, Trump, or someone else? and (3) Clinton, Trump or someone else will win?
Results are weighted to match demographic characteristics, such as race and gender, from the U.S. Census Current Population Survey, and are aligned to the 2012 presidential election outcome using self-reported votes in that election.
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http://graphics.latimes.com/usc-pres...oll-dashboard/
It's certainly one of the least useful polls out there. It's a closed poll, limited to selected voters, and for whatever reason considers what happened in 2012. Just look at the difference between who wins the "vote" (usually Trump) and who people "expect to win" (always Hillary and by huge margins at times).