The portion of voters with a favorable view of Trump - 41 percent, compared to 56 percent with an unfavorable view - was higher in the poll than for both House Speaker Paul Ryan and Senate Majority Leader Mitch McConnell, with 36 percent and 19 percent respectively viewing them favorably.
The QU poll showed that 59 percent of voters believe that the president's decisions and behavior have encouraged white supremacist groups.More news: Kingham Hill School GCSE pupils impress as they break school record
The poll was conducted shortly after a deadly white supremacist and neo-Nazi rally in Charlottesville, Virginia, earlier in August.
Trump's position was supported by the police chief in Charlottesville, who said there were "mutually combating individuals in the crowd" when fighting broke out on the night of August 11 between torch-bearing right-wing marchers and groups opposed to their presence.
Sixty-eight percent of voters think Trump's words/actions could cause an "international conflict", while 29 percent disagree.More news: Sempra Energy bids $9.45 billion for Oncor
American voters disapprove 55 - 40 percent of the way the news media covers Trump, and disapprove 62 - 35 percent of the way the president talks about the media. Quinnipiac says this is Trump's worst score on the question. I got the white supremacists, the neo-Nazi.
Voters say that President Donald Trump's inconsistent condemnations of racism have not discouraged white supremacists, according to a survey released this week.
American voters disapprove 60 - 32 percent of Trump's response to the events in Charlottesville.More news: Venezuela oil minister, PDVSA head to switch roles, Maduro says
The margin of error for the poll is 3.1 percentage points.