A new CBS News poll finds that Clinton now leads Trump nationally by 46-39 among registered voters nationally, up from a tie last week. Note this:

In the wake of the Democratic convention, positive views of Hillary Clinton have risen five points among registered voters, from 31 percent a week ago to 36 percent today. Unfavorable views of Hillary Clinton have dropped six points: from 56 percent to 50 percent.

https://www.washingtonpost.com/blogs/plum-line/wp/2016/08/01/the-khan-family-highlights-a-huge-gop-problem-no-one-knows-how-low-trump-can-go/