ATKINSON, N.H. — In a tight race, every vote counts, which explains the outsize attention being heaped on tiny New Hampshire.

Four days before Election Day, with the outcome in far bigger states such as Florida and Ohio still uncertain, Donald Trump drew about 500 people to a country club in the Granite State on Friday — many from nearby Massachusetts, which he'll certainly lose.

He boasted that he's way ahead.

"In four days, we are going to win the great state of New Hampshire," Trump predicted, projecting optimism as two polls released Thursday show a dead heat. Another shows Trump ahead by 5 points.

Days ago, Trump was denouncing polls as rigged. With momentum shifting his way, he's reverted to boasting at length about his performance in surveys.

"We're leading in Ohio and Iowa," he said. "North Carolina and Pennsylvania look great. Florida looks beautiful. We have so many great polls."

Hillary Clinton plans to stump in New Hampshire on Sunday, and Trump will cap the election at a Monday night rally in downtown Manchester — hours after a stop in Philadelphia, where Clinton will hold her final event, with her husband and President Barack Obama and the first lady.

Two GOP fixtures in New Hampshire — both latecomers to the Trump train — warmed up Trump's crowd in Atkinson by mocking Bill Clinton as a philanderer.

Former Sen. Bob Smith offered a Bill Clinton impersonation, joking that the former president wouldn't necessarily mind seeing his wife locked up.

"You know, if she goes to jail, I'm going to be free as a bird to do whatever I want to do," he said.

John Sununu, a former governor and White House chief of staff, and father of this year's GOP nominee for governor, told an off-color joke suggesting that, on top of other faults, Clinton is not the object of her husband's ardor.

"You think Bill was referring to Hillary when he said `I did not have sex with that woman?' " he asked, repurposing Bill Clinton's denial about his relationship with White House intern Monica Lewinsky.

The state Democratic Party quickly denounced Sununu. "John Sununu's comments are sexist, chauvinistic and disgusting, and they have no place in the Granite State," said chairman Ray Buckley.

Smith was a key Ted Cruz supporter in a primary that Trump ended up winning. He gave a hard sell to any wavering Granite State voters who didn't like Trump then and are still holding out.

"Get over it," he said, warning that the state could be decided by a few hundred votes. "We have got to stop this woman, Hillary Rodham Clinton, from becoming president of the United States."

Sununu predicted a somewhat wider margin — as much as 5,000 votes. Given the national electoral map, though, those votes could pick the next president.

"It all comes down to what happens here," he said. "Unbelievable, but true. ... It's on our shoulders."

As usual, chants of "Lock her up!" erupted periodically during the event. As Sununu railed against Clinton's handling of classified email as secretary of state, one man near the stage shouted: "Execute her!" — reflecting the venom coursing through the electorate.

Matt Mayberry, vice chairman of the state GOP, also told holdouts to "get over it."

"The Supreme Court is too important for your fragile ego to sit at home and not vote for Donald Trump. The Never-Trump needs to move over to Never-Hillary," he said.

About 500 people filled a ballroom at a country club in Atkinson, south of Manchester. Many came from nearby Massachusetts. One of the warm-up speakers was Kate Quigley, whose brother, Glen Doherty, was among the Americans killed in the attack in Benghazi, Libya, on Sept. 12, 2012.

"Who we elect as president has direct life and death consequences," she said, adding that she believes her brother would still be alive if Clinton hadn't been secretary of state. "She sent no one, and for this she wants a promotion. We cannot let it happen."

The crowd booed.

At various times in the last month, each side has boasted that it was poised to poach turf the other party had long kept in its grip. With four days remaining, both Trump and Clinton are largely playing defense and scrapping over the familiar battlegrounds: Florida, North Carolina, Ohio.

Donald Trump told New Hampshire supporters that the polls look strong for him. (Jim Cole/The Associated Press)

Even as he scrapped for support in New Hampshire, his mind was on Texas, and he seemed irritated at the need to swat down rumblings that the longtime Republican stronghold might slip from his grasp.

"These people — they're horrible people," he said, referring to journalists. "They go, `Texas is in play.' Then you have these lines a mile long." He noted that state Agriculture Commissioner Sid Miller has been on TV calling Texas a "total blowout for Trump."

"People who have never voted before are on line. These are people who didn't give a damn for politics," Trump said of his Texas supporters. "They never saw anybody that they felt good about. They went from being a nonpolitical person to wearing Trump shirts and buttons.

"Texas is a total blowout," he said. "We're going to have a lot of blowouts. ... I don't want to lose Texas; that would be terrible."

But Trump hasn't bothered flying to Texas. New Hampshire supporters were tickled at the attention.

"It's only the four [electoral votes], but it's going to put him over the top. Isn't that something?" said Cheryl Cheney, 51, of Pelham, N.H., who works security for a government contractor. "I guess New Hampshire's a big deal."

Trump boasted that the polls are shifting his way. And he pushed the idea that he shouldn't be counted out because even on the eve of the New Hampshire primary he was an underdog — a narrative that doesn't quite comport with reality. By primary day, he was the front-runner.

"Remember, I was supposed to lose the primary and I won in a landslide," he said. "It was sort of shocking."

In fact, polls for the New Hampshire primary in February were accurate. The final polling average showed Trump winning by 17 percentage points; he won by 19.5.

Clinton aides were also projecting confidence, pointing to strong early voting turnout in Florida, Ohio, Nevada and other key states.

"This is where having a ground operation versus having a little ground operation matters ... where races are neck and neck, having a good operation will put us over the top," the Clinton campaign's director of states and political engagement, Marlon Marshall, told reporters Friday afternoon.