Former Vice President Joe Biden topped President Trump by 9 percentage points in a Fox News poll released on Saturday.

Iran Press/America: Former Vice President Joe Biden topped President Trump by 9 percentage points in a Fox News poll released on Saturday.

The likely Democratic nominee was backed by 49 percent of the survey's respondents in a theoretical matchup against Trump, who had 40 percent support. An additional 11 percent said they are undecided or will vote for someone else.

Last month, Biden had an 8-point lead over Trump, at 49 to 41 percent.

Biden has committed to choosing a woman as his vice-presidential candidate.

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