Clinton leads among likely national voters, 47-39, with Libertarian Gary Johnson following at 7 percent and Green Party candidate Jill Stein behind at 2 percent.
The new poll shows a leap ahead for Clinton, who led by just two points, 42-40, with Johnson at 11 percent and Stein at 3 percent, when GWU last polled the election at the end of August.
The GWU Battleground poll was conducted Oct. 8-13 via live telephone interview in conjunction with Republican pollster The Tarrance Group and Democratic pollster Lake Research Partners. The survey included 1,000 likely voters nationwide and has a margin of error of plus or minus 3.1 percent.
TPM's PollTracker Average for the general election shows Clinton leading Trump, 44.7 to 42.