Donald Trump has buckled down after suffering through two of his toughest weeks this election cycle and some Republican leaders predict their nominee's campaign reset will totally reshuffle post-Labor Day polls.

"I think that he's had probably the best two weeks of his campaign and [Clinton] has had probably the worst two weeks of her campaign," senior Republican National Committee strategist Sean Spicer told the Washington Examiner on Friday afternoon.

"The polls right now are a lagging indicator and I think you're going to see things change. You're going to see polls continue to tighten not just nationally, but in key battleground states," he swore.

The Trump campaign is working overtime to keep their candidate on message and away from the center of controversy, while simultaneously staffing up in the swing states he needs to reach 270 electoral votes and developing additional attack ads against Hillary Clinton. The billionaire's newest campaign chief, veteran GOP pollster Kellyanne Conway, has tethered him to the teleprompter and encouraged him to make direct appeals to minority voters who traditionally vote Democratic.

Conway's guidance, coupled with Trump's apparent willingness to take his campaign in a new direction, has paid off to some extent.

Recent polls in Florida, North Carolina, Ohio and Iowa show the Republican presidential hopeful gaining ground after witnessing much of his support evaporate when he attacked a Gold Star father who spoke out against him at the Democratic National Convention.

A Monmouth University poll of Florida voters taken between Aug. 12-15 found Clinton carrying a 9-point edge, but a Florida Atlantic University poll released Wednesday showed Trump in the lead — 43 to 41 percent. State-level polls in Ohio suggest Clinton's lead is shrinking there as well and in North Carolina, three separate polls have shown the two candidates running neck-and-neck since Aug. 15.

Poll: Opinion of Donald Trump InsideGov

The possibility of a Trump turnaround in battleground states like Pennsylvania, where his message resonates but poll numbers show Clinton holding a comfortable lead, perhaps lies in his support among independents. In Iowa, for instance, the latest Quinnipiac University poll shows Trump trailing Clinton by 3 percentage points overall, but carrying a 4-point edge among independent voters. Similarly, Clinton leads Trump in Nevada, but Trump has a Suffolk University poll released Aug. 18 shows him 5 points ahead among independents in the Silver State.

"I don't think Republicans are wrong about the polls tightening," said Geoffrey Skelley, associate editor of Larry Sabato's Crystal Ball at the University of Virginia Center for Politics. "It seems reasonable to me that in a country that is very polarized, even with Trump's many issues, his numbers could improve. Obviously with Clinton there is a lot to attack so it's not like she's the strongest Democratic candidate."

"I wonder if, as we get closer to the election, some Republicans are going to come home," Skelley mused, noting the same thing could happen across the aisle where Sanders supporters and Democratic voters who are unenthusiastic about Clinton agree to get behind her anyway.

Skelley suggested the current polling gap could also close between Labor Day and mid-October if one of two things occur: an "October surprise" related to Clinton's private email practices or charitable foundation emerges and does further damage to the former secretary of state's credibility or another terrorist attack occurs, giving Trump an opportunity to double down on his narrative that Americans aren't safe and need a strong leader.

"At this point, what Trump really needs is outside help," Skelley said. "He probably needs some really bad economic news or some really bad flare up with Clinton's many problems."

He paused, "Of course, that's pure speculation and who the heck knows if that is going to happen… But Trump needs something to shake the race up at this point."

All things considered, presidential polling data from 1952 to 2012 has almost always shown that the candidate who enters September with an edge goes on to win the White House in November. In 1964, Lyndon Johnson ended August with a 36-point lead over Barry Goldwater. He went on to win by more than 25 points in November. In 1976, Jimmy Carter led Gerald Ford by 15 percentage points heading into September. He went on to win 297 electoral votes. In 2008, Barack Obama held an 8-point lead over John McCain at the beginning of September… and so on and so forth.

"Based on the history of national polls, they can move some. But at least since the 1950s there's been a long streak of if a candidate is winning at this point, they go on to win," Skelley said. "So with that in mind, I do think Clinton is the clear favorite at this point."

As August winds down and Labor Day approaches, the current RealClearPolitics national polling average shows Clinton beating Trump 47.7 percent to 41.7 percent.