A new poll by New Jersey Democrat Tom Malinowski showed him narrowly leading five-term Republican Rep. Leonard Lance in the 7th District.

Malinowski, the former assistant secretary of State for democracy, human rights and labor, led the incumbent, 47 percent to 45 percent, in the survey obtained first by Roll Call. Seven percent of likely voters were undecided.

Greenberg Quinlan Rosner Research surveyed 500 likely general election voters from June 20-25. The margin of error was plus or minus 4.4 percentage points.

Asked about the longer-than-normal six days the poll was in the field, the campaign said it was “to ensure a representative sample.”

Malinowski easily won the Democratic nod earlier this month to take on Lance in the only contested Garden State district that Hillary Clinton carried in 2016. Voters in the 7th backed Clinton by 1 point, while re-electing Lance by 11 points.