Matched against each other, Hillary Clinton earned 38 percent to Donald Trump's 34 percent, while 11 percent volunteered that they would vote for another candidate. | AP Photo Poll: Clinton narrowly leads Trump in New Jersey

A week before voters in New Jersey head to the polls for their parties' respective primaries, Hillary Clinton is clinging to a single-digit lead over likely general election opponent Donald Trump, according to results of a Monmouth University poll released Tuesday.

Matched against each other, Clinton earned 38 percent to Trump's 34 percent, while 11 percent volunteered that they would vote for another candidate, 15 percent said they are undecided and 2 percent refused to answer. Clinton earned the support of 72 percent of Democrats, while among Trump supporters, 73 percent of Republicans said they would vote for the party's presumptive nominee. Trump outperformed Clinton among independent voters, 37 percent to 25 percent, while 21 percent said they are undecided.


In a Quinnipiac University survey conducted earlier this month, Clinton led Trump 45 percent to 38 percent.

The gender gap between Trump and Clinton persists in this survey. Among the New Jersey male voters surveyed, 40 percent said they would vote for Trump, while 31 percent said they would go for Clinton. The results were flipped among women, who supported Clinton over Trump 44 percent to 28 percent.

While Clinton leads among voters in the 18- to 54-year-old age group, Trump holds a narrower advantage among those older than 55. He also holds a 15-point lead among white, non-Hispanic voters, while all other racial and ethnic categories favored Clinton by 40 points.

Provided the additional options of Libertarian nominee Gary Johnson and Green Party candidate Jill Stein, Clinton's advantage widened slightly. In the four-way race, Clinton earned 37 percent and Trump took 31 percent, followed by Johnson at 5 percent and Stein at 4 percent.

New Jersey voters also largely suggested that having home-state candidates on the ballot of either major party would not influence their decision in November. If Trump were to choose Gov. Chris Christie as his running mate, 48 percent said it would not influence their vote, while 42 percent said it would make them less likely to vote for the ticket. If Clinton were to choose Sen. Cory Booker as her vice presidential candidate, 67 percent said it would not influence their vote.

Monmouth conducted the poll via landlines and cellphones from May 23-27, surveying 703 registered voters with a margin of error of plus or minus 3.7 percentage points.