The Clintons just welcomed the newest member of their growing family to the world, with former (and potentially soon-to-be-again) first daughter Chelsea Clinton giving birth to a baby boy, Aidan Clinton Mezvinsky. Aidan joins his sister, Charlotte, as Bill and Hillary Clinton's two grandchildren.

And given we could be just a few months away from a second President Clinton — and that Aidan's mother, Chelsea, has also been the subject of plenty of political talk — there will be chatter about whether the newest Clinton could one day take over the family business. Chelsea has even talked about this and said she's open to it.

That's presumptuous, though; the kid is a day old, after all, and we don't even know what his position is on free trade yet. So we'll simply talk about whether the Clintons as a whole just increased their chances of winning another presidency — Hillary Clinton 2016 or otherwise.

Here are a few reasons their chances are better now:

1. No president has ever been an only child

As much as Chelsea has been rumored to be a potential future president, there is one factor that bets against her: No president has ever been an only child. There were four presidents who had only half-siblings — Barack Obama, Bill Clinton, Gerald Ford and Franklin Roosevelt — but none who were both of their parents' only offspring. Charlotte is no longer an only child, and Aidan enters the world with a sister, meaning the probabilities are more in their favor. It's just science.

2. There are now more Clintons in the world, period

This is the easiest one, and it's pretty simple: The Clintons just increased their share of the U.S. population — and pool of potential future presidents — by one. There are now four Clintons who could be president — Hillary, Chelsea, 1-year-old Charlotte and newborn Aidan. While these future President Clintons comprised 0.0000009 percent of the population before, they now comprise a whopping 0.0000012 percent of the population.

3. Only two presidents have had one grandchild when sworn in

It's not uncommon for presidents to be grandparents. In fact, FiveThirtyEight did some digging and found 12 presidents who had grandchildren when they were sworn in. But just two of them — Jimmy Carter and Ronald Reagan — had only one grandchild. (Side note: William Henry Harrison had 25! It's almost like the guy was bent on having so many grandchildren that at least one of them would become president. And it worked; see below.)

4. Males remain more likely to hold — and run for — office than women

While their grandmother looks to shatter another glass ceiling in the general election after breaking one in the Democratic primary, it remains the case that women are significantly less likely to hold — or run for — office in the United States, and the speed with which that's changing isn't exactly heartening to advocates of women in politics. Currently, 20 percent of Congress is female, and 12 percent (6 out of 50) governors are women — the two most common paths to becoming president. Of course, the picture could be far different by the time Charlotte and Aidan are both first eligible to run for president in 2052, but change so far has been incremental.

5. There will be plenty of Aidans and Charlottes to vote for them

Let's assume, for the sake of argument, that you're at least a little more likely to vote for someone who shares your name. (This is based on nothing, but have you been reading this post? Did you see No. 2?) According to the Social Security Administration, Charlotte is currently the ninth-most-popular name for a baby girl, while Aiden (slightly different spelling) is 13th for boys. And that actually undersells the popularity of the newest Clinton's name: Aidan is 185th, Ayden is 87th, Aden and Adan are both in the top 400, and Aaden -- this writer's preferred spelling -- is in the top 800.

But before you get ready to print those Charlotte/Aidan 2052 bumper stickers, know that there is one thing that makes it pretty unlikely either of them will become the second (or third or fourth) Presidents Clinton:

1. American presidential dynasties rarely span three generations

As Vox noted last year, the only president to be the grandchild of a president was Benjamin Harrison — one of the aforementioned two-dozen-plus W.H.H. grandchildren, whose father served a few years in Congress but otherwise wasn't a big-name politician.

In fact, about the only other American political family to see its national power span three generations is the Bushes, which began with former senator Prescott Bush (R-Conn.) and progressed to his son George being president and then George's son, George W., being president.

The Bushes, of course, are a growing clan, too. George W.'s daughter, Jenna Bush Hager, has two daughters who will be eligible to run for president in 2048 and 2052, respectively.