One week from Election Day, Donald Trump is spending precious time campaigning in blue states that haven't been carried by a Republican presidential candidate in a generation.

On Monday, the GOP nominee made two stops in Michigan and is scheduled to stump in Wisconsin on Tuesday evening. It's an itinerary that is baffling some longtime political analysts in that many see the pair of states as a fool's errand, especially when Trump remains either tied or slightly behind in some of the premier conventional battleground states he must carry to have a chance at the presidency.

The bold moves are either a sign of supreme confidence or utter self-delusion.

The last Republican White House nominee to carry Michigan was Vice President George Bush in 1988; President Ronald Reagan was the last GOPer to win Wisconsin in 1984.

But the Trump campaign claims its internal polling is showing the New York City billionaire briskly closing within striking distance of Hillary Clinton in traditional blue bastions across the map, the product of a national tightening that has occurred in the race over the last week.

"We think we're gonna win them," a Trump campaign aide says. "The numbers are there to justify that. It's margin of error."

On Sunday night, Trump made an evening trip to New Mexico, another blue state that Republicans haven't carried nationally since President George W. Bush's re-election in 2004.

"New Mexico's a point," the Trump aide says, again citing the margin in internal campaign polling.

There are no public numbers to support the Trump campaign's case.

In Michigan, the most recent two surveys of the race out last week gave Clinton a lead of 6 to 7 points. In Wisconsin, Trump's deficit to Clinton is between 4 and 6 points, according to the latest public reads of the race. There haven't been any recent published surveys of New Mexico, but the last one, released in the first week of October, put Clinton up 13 points.

But the Clinton campaign isn't taking any chances either. It began running television advertisements in the Badger State this weekend and is dispatching Clinton's running mate, Sen. Tim Kaine of Virginia, to make two stops in Wisconsin on Tuesday. On Wednesday, the Democratic nominee's daughter, Chelsea Clinton, will crisscross the state with three stops.

A former Democratic Party official in Wisconsin says he sees these actions being made only out of an abundance of resources and caution and not as a sign of panic.

"I don't think we're in play, based on everything I've seen internally," says the Democrat, requesting anonymity to speak about confidential information. "I've seen her with a high single-digit lead here. Will it tighten? Yeah, because everything tightens."

Trump's campaign believes its momentum was already building ahead of the FBI's decision on Friday to notify congressional leaders that investigators would be reviewing a new set of emails relevant to Clinton's use of a private server while secretary of state. The emails were discovered as a part of a separate investigation of Anthony Weiner, the former New York congressman who is married to Clinton's top personal aide, Huma Abedin.

It remains unclear what exactly is in the emails being reviewed and if the FBI will release any more information about its renewed inquiry before Election Day. But, jolted by the surprise development, the Clinton campaign has responded with a pointed offensive against FBI Director James Comey, who they believe has improperly stoked new suspicions about her, even though she hasn't been criminally charged with any wrongdoing.

In a sign the campaign is spooked about the potential political fallout, Clinton addressed the inquiry again on Monday during a rally at Kent State University in Ohio.

"Now, they apparently want to look at emails of one of my staffer's, and by all means they should look at them. And I am sure they will reach the same conclusion when they looked at my emails for the last year," she said. "There is no case here."

In Grand Rapids, Michigan, Trump used the news to badger Clinton, saying "we can be sure that what is in those emails is absolutely devastating."

"Thank you, Huma. Thank you, Huma. Good job, Huma," Trump taunted to cheers and laughs from his crowd.

When chants of "Weiner!" broke out, Trump smiled, pointed and obliged his fans, "Thank you, Anthony Weiner."

In order for Trump to flip Michigan, he will need to run up a large margin over Clinton where he campaigned Monday in the western part of the state – by likely at least 10 points – to offset losses in Detroit.

Dave Doyle, a former chairman of the state Republican Party who successfully managed the 1988 Bush campaign in Michigan, says he's skeptical of Trump's chances in the state but has been surprised by the level of advertising on both sides.

The political consulting firm he works for, MRG, placed Trump down to Clinton by 5 points in its last survey and is set to publish its newest poll results on Wednesday.

"If he carries Michigan, he's not getting 270, he's probably getting 300 [electoral votes]. If you're winning Michigan, you're winning Ohio, you're winning Florida, you're winning a lot of other states," Doyle says. "I'd be surprised."

Wisconsin, a state with an 88 percent white population, is also a Trump target because of its large percentage of blue-collar residents.

He'll rally in Eau Claire on Tuesday night, accompanied by his running mate, Gov. Mike Pence of Indiana, and Wisconsin Gov. Scott Walker, who dropped his own bid for president long before the first primary vote was cast.

Pence usually campaigns separate from Trump, but his scheduled presence with him at the Wisconsin rally, along with Walker's, is meant to bring leery Republicans on board. Trump was badly beaten in April's Wisconsin GOP primary by Sen. Ted Cruz of Texas after many conservative activists in the state lined up against him.

Still, Trump aides believe his economic populism and anti-free trade posture will resonate with voters in upper Midwest states that have been touched by manufacturing losses.

"When I win on Nov. 8, I am going to bring your jobs back to America," Trump told the Grand Rapids crowd. "You know it better than anybody else in this country. The long nightmare of jobs leaving Michigan will be coming to a very rapid end. We're going to make Michigan the economic envy of the entire world again."

The Clinton campaign has garnered the majority of the attention for being able to make traditionally red states – like Arizona and Utah – competitive. This spate of visits by Trump is an attempt to even out that narrative and perhaps just pull off an upset in an unlikely place with a coalition of new voters.