Former President Donald Trump and Vice President Kamala Harris are locked in a neck-and-neck race in the Granite State, according to a New Hampshire Journal/Praecones Analytica poll released Sunday night.

It’s yet another sign that Democrats have won seven of the last eight presidential elections in one state, and that could happen again in November.

The poll of 601 registered voters, conducted after the Republican convention but before President Joe Biden announced his withdrawal from the 2024 campaign, found Trump essentially tied with Biden, 39.7 percent to 39.4 percent.

Compared to Harris, Trump’s margin grows slightly, to 40.2 percent versus 39.3 percent.

In both cases, independent candidate Robert F. Kennedy Jr. receives about 20 percent of the vote.

Among unannounced voters, Harris holds a narrow lead, 34.1 to 33.5 percent.

Political polls are often described as “a snapshot in time,” and Biden’s time in the race is markedly different from the new political reality. But this poll is the latest in a series of polls showing Trump as competitive in the Granite State.

One reason appears to be widespread concern about Biden’s ability to serve. While Granite State Democrats like Sen. Maggie Hassan said as recently as Thursday that Biden was ready for another four years in the White House, voters had strong doubts, the poll found.

Asked how confident they were that Biden had the physical and mental fitness to do the job, 65 percent of respondents said they had little or no confidence, compared with 74 percent among independent voters.

The narrow margins between Biden and Harris are more evidence of the power of partisanship in contemporary American politics. The percentage of Democrats supporting Biden and Harris was nearly identical (77.4 versus 77.7 percent). Republican support for Trump was similarly stable in both cases (84.4 versus 82.7 percent).

According to pollster Jonathan Klingler of Praecones Analytica, there is one key difference between the two parties: enthusiasm.

“With the Granite State appearing to be in play for the GOP in 2024 for the first time in many cycles, 50.2 percent of registered Republicans report they are more excited to vote this year than they were four years ago, compared to 35 percent of registered Democrats,” Klingler said.

Republicans will need that advantage, too, as polls show Trump remains unpopular among Granite State residents.

Asked to describe their personal feelings about the former president, just 31 percent described themselves as “always been a Trump supporter,” while another 9.5 percent said they weren’t on board in the past but are now. That compares with 48 percent who say they’ve never supported Trump and another 11 percent who say they have supported him in the past but no longer do.

“These numbers suggest the former president is at or near his ceiling in New Hampshire,” Klingler said. “If Harris can consolidate the anti-Trump vote by reaching the 16 percent of Democrats who support Kennedy, it could decide the race in New Hampshire.”

According to Corey Lewandowski, former campaign manager and adviser to Trump, the new poll confirms his view of the race.

“New Hampshire is going to be a battleground this cycle. That poll tells me the race is a close race on the margins,” Lewandowski said. “It means we have a great chance because the last time a Republican won the state of New Hampshire in a presidential race was 24 years ago.

“If the Democrats hold New Hampshire — and the last poll I saw in the state of Maine shows a tie there as well — that’s an advantage for the Republicans. It allows us to expand into Virginia and potentially Nevada and potentially New Mexico and potentially Minnesota.”

At the same time, the basic principles of the race for the White House have not changed, Lewandowski said.

“We want this race to be as close as possible in traditionally Democratic states that are now battleground states. But we remain focused on our bread and butter: Michigan, Pennsylvania, Wisconsin, the states that are going to determine the outcome of this election.”