Fair political polling is a statistical balancing act
Rasmussen: Clinton up by 3 over Trump
Clinton receives 43 percent support among likely voters, and Trump has 40 percent, with Libertarian Party nominee Gary Johnson taking 8 percent and Green Party nominee Jill Stein at 2 percent.
Rasmussen's surveys have consistently shown Trump faring better than in other polls.
According to the RealClearPolitics average, Clinton leads by more than 7 points nationally in the four-way match-up, and two recent polls show her with a double-digit lead.
Clinton's advantage in the Rasmussen survey is due, in part, to support from within her own party.
She receives 82 percent support among Democrats while Trump only receives 74 percent support from Republicans. Trump leads, 37 percent to 32 percent, among voters unaffiliated with a party.
The survey found Johnson pulling more support away from Trump than he does from Clinton. The former Republican governor of New Mexico receives 9 percent support from Republicans, compared to only 3 percent from Democrats.
The Rasmussen survey of 1,000 likely voters was conducted Aug. 9-10 and has a 3 percentage point margin of error.