Clinton has the support of 45 per cent of likely voters as against 41 per cent for Trump, CBS News said in its latest weekly poll.
She had a similar lead over Trump in the last weekly poll.
This poll was conducted by telephone November- 2-6, 2016 among a random sample of 1,753 adults nationwide, including 1,426 registered voters.
CBS said Trump leads among white men, whites without a college degree, and seniors.
In the RealClearPolitics average of polls, Trump is now trailing by two percentage points.