The online poll shows Clinton has 49 percent to Trump's 45.5 percent.
The UPI/CVoter online tracking poll surveys about 200 people each day, leading to a sample size of roughly 1,400 people during any seven-day span.
Because the poll is conducted online and individuals self-select to participate, a margin of error cannot be calculated. The poll has a credibility interval of 3 percentage points. This seven-day span includes data collected from Aug. 7 to Saturday, when 1,403 people were surveyed. Of them, 974 identified themselves as likely voters.