On Easter Sunday, Donald Trump's daughter Ivanka gave birth to her third child, a boy she named Ted. Well, Theodore, to be precise, but "Ted" lends itself more readily to campaign jokes.

It made me wonder how common the name "Theodore" is anymore. The only Theodores I can think of off the top of my head are Roosevelt and Bundy, which sort of covers the spectrum of possible outcomes. Happily, the Social Security Administration compiles precisely that information: the popularity of names by gender, all the way back to the 1880s.

So how ahead of or behind the curve is Ivanka when she names her son Theodore (giving him the last name of his father) Kushner? The name, in fact, just became very popular nationally.

(Don't worry about those other lines for now. Those are other kids' names for other candidates, and we'll get to them.)

As it turns out, Ivanka is good at picking trendy names. Her first child, daughter Arabella, caught a wave of popularity that's just spiking.

Contrast that with Ivanka's own name. Sort of popular a long time ago; not really popular since.

That's because it's a family name -- a diminutive version of her mother Ivana's name.

Regardless, Donald Trump is not a trend-namer.

His sons Donald and Eric both got very generic names, the former obviously being from his father. But each was also named as the name was going out of style.

His daughter Tiffany is a more extreme version of that, named just after a huge boom in the name's popularity that was ending as she was born.

Youngest son Barron got his name from a favorite alias of his father's, a name that Trump even used when pitching a pilot loosely based on his life.

John Kasich's daughters, twins Emma and Reese, were both named just before the heights of those names' popularity. (Yes, Reese -- like Reese.)

Ted Cruz's two daughters were more of a split. Caroline is on the upswing; Catherine is less popular than it used to be.

But you've been patient -- lured in by that headline -- so it's time to give you the goods. Only one candidate gave his kid a name when it was at the depths of its popularity, only to see it rise once again. And that candidate was Bernie Sanders, whose son, Levi, was named at about the lowest point of the name's popularity. Then, it spiked.

That graph is what Sanders hopes his chances of winning the nomination are about to do.

The family of Sanders's opponent is not quite as hip. Chelsea Clinton's daughter, Charlotte, got her name right as that name hit a new high.

And then there's poor Chelsea herself. Chelsea got her name as it was trending upward in popularity. The peak came in 1992 -- the same year that the United States met a family from Arkansas that was about to move into the White House. The popularity of Chelsea's name plummeted right afterward.

This is not meant to be a metaphor.