Election Day is promising many firsts — and not just the obvious ones.

Yes, the country could get its first Mormon president if Republican Mitt Romney is elected. And of course, it could get its first two-term African-American commander in chief if President Obama is re-elected.

But Tuesday offers a smorgasbord of other potential "first" opportunities across the nation — from New Hampshire, which could end up with the nation's first all-female congressional delegation, to Arizona, which could elect its first Hispanic U.S. senator.

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ARI SHAPIRO, BYLINE: I'm Ari Shapiro, traveling with the Romney campaign. And here's a summary of Romney's final sprint: a rally in New Hampshire, a flight to Iowa for another rally, a flight to Colorado, two rallies there with a long bus drive in between then back to Iowa for a few hours' sleep in Des Moines. And that was just yesterday. Romney means it when he says:

MITT ROMNEY: We've had some long days and some very short nights.

New York City's canceled marathon left thousands of runners who had traveled to the storm-damaged city with nothing but free time and a good pair of shoes.

The result: Sunday morning's hastily arranged mercy run in which hundreds of would-be marathoners are expected to jog through Staten Island with backpacks full of food and other supplies.

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RACHEL MARTIN, HOST:

As New York City's first responders begin to show fatigue, and in many cases deal with losses of their own homes, replacement crews of firefighters are getting ready to roll into Manhattan and Long Island. Among them are a group of firefighters from a small rural fire station in the mountains of upstate New York.

NPR's Margot Adler has been covering the storms aftermath. On Saturday, she walked into Central Park, opened for the first time since before the storm. She then went to examine the "border areas," those blocks where there was power and normalcy on one side, and on the other, no lights and just the noise of a few generators pumping power.

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RACHEL MARTIN, HOST:

This is WEEKEND EDITION from NPR News. I'm Rachel Martin.

In this final weekend before Election Day, President Barack Obama and Republican nominee Mitt Romney are both looking for an edge as they make their final arguments to voters in a handful of battleground states.

For more, Mara Liasson, NPR's national political correspondent joins us. Mara, welcome.

MARA LIASSON, BYLINE: Nice to be here.

Republicans are hoping to gain control of the U.S. Senate. The path toward victory had Indiana solidly on their side. That was, until Indiana's treasurer Richard Mourdock beat longtime Sen. Richard Lugar in the primary.

Then, during a debate on Oct. 23, Mourdock and his Democratic opponent, Congressman Joe Donnelly, were asked about abortion and contraception. Like Donnelly, Mourdock said he was against abortion.

In a country of dreamers and achievers, we seem surprisingly content in the middle.

The term "middle class" is at once useful for political purposes and practically useless as an economic descriptor. Without a consensus on an economic definition, nearly half of the country self-identifies as being in the middle class.

That gives politicians an opportunity to make far-reaching appeals to voters, speaking to Americans with incomes of $30,000 and $100,000 in the same breath.

China's Communist Party will introduce a new slate of leaders this month to run the world's most populous country for at least the next five years. Their to-do list will include dealing with the nation's opaque and politicized court system.

"China's judicial system urgently needs to be reformed, improved and developed," a government planning paper acknowledged last month.

It may be too little, too late for Rep. Todd Akin.

The Republican candidate for Senate from Missouri is seeing an influx of money in the closing days of his campaign. Still, it would come as a surprise to seasoned observers in the state if Democratic Sen. Claire McCaskill went down to defeat.

The story of the raid that killed Osama bin Laden has captured the imagination of authors and film directors.

Just this year, the mission carried out by Navy SEAL Team Six has already been re-told in three books, including one written by a former Navy SEAL. Acclaimed film director Katherine Bigelow, who directed the film The Hurt Locker, is getting ready to release her treatment of the bin Laden raid in December.

On Sunday night, the National Geographic Channel will air its film about the raid, SEAL Team Six: The Raid on Osama bin Laden.

They were there in the 1970s,through the '80s and on into the '90s. Aerosmith has managed to become one of the most enduring bands in American rock history. Now, the group is releasing its first studio album in 11 years. It's called Music from Another Dimension!, and it's out this week.

The album is a labor of love, one that lead singer Steven Tyler says almost didn't happen. Speaking with NPR's Rachel Martin, Tyler points to a particularly rough experience in the time between albums: the day in 2009 when he fell off the stage during a live performance.

From the outside, this white metal container looks like all the other mobile structures at Forward Operating Base Shank, the main NATO base in Afghanistan's Logar province. But rather than housing soldiers, offices or latrines, the building contains a fully functioning — if spartan — radio studio.

Every time a storm brings flooding to a large metropolitan area, there are calls to improve the levee systems that are designed to prevent flooding.

But there's a major problem with doing that. "We don't know where all of our levees are," says Samantha Medlock with the Association of State Floodplain Managers.

Superstorm Sandy capped what's been a pretty impressive couple of years for U.S. natural disasters. There have been wildfires, tornadoes, floods and derechos. And insurance companies are on the hook to pay billions in related claims.

"We're seeing more of everything, and what we're doing is trying to factor that in going forward as we work with others to have a better sense of what the future holds," says State Farm spokesman David Beigie.

On-air challenge: Every answer today consists of the names of two famous people. The last name of the first person is an anagram of the first name of the last person. Given the nonanagram parts of the names, you identify the people.

Example: Madeleine ________ Aaron.

Answer: Madeleine KAHN and HANK Aaron

The news for patients who had injections of fungus-tainted steroids just keeps getting worse.

Both campaigns want to claim momentum heading into the final days of the campaign. This is especially true in battleground states like Iowa, where enthusiasm and voter turnout can make all the difference.

It's a common political metaphor — momentum — but is it a good one?

There are political races all over the country that aren't even close, but you wouldn't know it from listening to the candidates.

It seems that every behind-the-curve challenger is scrapping his or her way to victory and every ensconced incumbent is fighting an unexpectedly tight contest.

In the vast majority of pre-election polls, likely voters are usually asked, "If the election were held today, for whom would you vote?"

That's the wrong question to ask, says Justin Wolfers, a political economist with the University of Michigan. He's spent years researching polls, and in a new paper he offers what he says is the right question:

Who do you think will win?