Clinton leads in the head-to-head match, 49-44, among likely voters nationally.
With third-party candidates included, Clinton's lead drops slightly to three points, 44-41, with Libertarian Gary Johnson following at 7 percent and Green Party candidate Jill Stein at 3 percent.
Since Fox News released a national poll last week, Clinton has decreased her lead in both the head-to-head and four-way polls.
In a survey including just the major-party candidates, Clinton led +7 last week and now leads +5, and with third-party candidates, Clinton previously led +6 and now comes out ahead at +3.
The Fox News poll surveyed 1,221 likely voters nationwide via live telephone interview from Oct. 22-25, with a margin of error of plus or minus 2.5 percent.
TPM's PollTracker Average for the general election shows Clinton leading Trump, 49.4 to 41.