Poll: Trump trails Biden by 6 points nationally

President TrumpDonald TrumpSouth Carolina Senate adds firing squad as alternative execution method Ex-Trump aide Pierson won't run for Dallas-area House seat House Oversight panel reissues subpoena for Trump's accounting firm MORE trails Democratic presidential nominee Joe BidenJoe BidenIntercept bureau chief: minimum wage was not 'high priority' for Biden in COVID-19 relief South Carolina Senate adds firing squad as alternative execution method Obama alum Seth Harris to serve as Biden labor adviser: report MORE by 6 percentage points in a new Hill-HarrisX national poll less than 50 days away from Election Day.

Forty-five percent of registered voters in the Sept. 10-14 survey said they would choose Biden if the election were held today, a 2 percentage point decrease from the previous poll conducted earlier this month.

By contrast, 39 percent of voters said they'd cast their ballots for Trump, no change from the last survey.

Four percent of voters said they'd prefer someone else as their presidential candidate, a 1 percentage point dip, while another 4 percent said they do not plan to vote.

Eight percent of voters said they were still unsure, a 1 percentage point tick up.

The survey found Biden's lead among senior voters, ages 65 and older, fell 9 percentage points, from a 10 point lead in the Sept. 5-8 poll to a 1 point lead in this most recent study.

The Hill-HarrisX poll was conducted online among 3,758 registered voters between Sept. 10 and 14. It has a margin of error of plus or minus 1.6 percentage points.

— Gabriela Schulte