Contributor: 'Trump 2028' could be a vote for Ivanka, Eric or Don Jr.

With President Trump continuing to tank in the polls, the parlor game we know as “2028 Republican primary speculation” is back in full swing among the chattering classes.

Vice President JD Vance — who would normally be considered the heir apparent, and who just happened to make a campaign stop in Iowa recently — now finds his “America First” brand positioning complicated by Trump’s Iran misadventure. So much for an easy glide path to the nomination.

Secretary of State Marco Rubio would seem to benefit from Vance’s stumbles, but in a political moment that fetishizes “authenticity,” Rubio risks coming across like a man who irons his blue jeans. Add to that his reputation as a foreign policy hawk in a party that increasingly wants out of “forever wars,” and he’d be the ideal presidential candidate for … 2004.

All of which has opened the door to more imaginative speculation. “If Pat Buchanan and Roger Ailes had a baby,” former “Meet The Press” host Chuck Todd recently quipped, “it would be Tucker Carlson.”

Ailes, of course, was the media-savvy evil genius who took Fox News to No. 1. And while “Pitchfork Pat’s” populist presidential campaigns weren’t ultimately victorious, he is credited with paving the way for Trump’s eventual 2016 victory.

As this comparison suggests, Carlson could make a formidable Republican presidential candidate. The hitch? Carlson and Trump have recently been trading blows, which is not where any potential Republican candidate wants to be.

For all of his polling woes, Trump still enjoys an 85% approval rating among Republicans, according to the recent Washington Post-ABC News-Ipsos poll. And his recent defeat of Indiana Republican legislators who dared defy him over gerrymandering only underscores the point: Trump’s grip on the Republican Party remains firm.

Even if you dismiss talk of a third Trump term as overwrought constitutional fan fiction, it’s hard to imagine a Republican nominee emerging without Trump’s blessing — let alone in defiance of it.

Which brings us to the latest theory making the rounds: Trump isn’t going to pass this torch to anyone lacking the proper surname.

In this telling, Vance is the loyal, if naive, assistant manager waiting for the boss to retire and hand him the keys to the office — only to discover it’s a family business and the ne'er-do-well son has just pulled into the parking lot in a Ferrari.

Enter Donald Trump Jr., whose chief qualification is name recognition so strong it could probably win a Republican primary on its own.

Add to that daddy’s endorsement, and as the Bulwark’s Jonathan V. Last has noted about Vance and Rubio, “Challenging Don Jr. would turn them into enemies of the people.”

But that doesn’t mean this is a slam dunk for Junior.

As British-American journalist Sarah Baxter recently wrote, “like Logan Roy, the patriarch in the television drama Succession, Trump loves playing his children off against each other. He thinks it instills a healthy killer instinct in his privileged offspring.”

This is to say that Junior isn’t the only potential heir lurking in the wings.

Last year, for example, Eric Trump told a journalist: “I think I could do it. And by the way, I think other members of our family could do it too.”

Which brings us to the wildest speculation of all: Ivanka Trump.

Now, to be sure, Ivanka has kept a polite distance from politics (and her father) in recent years, and she doesn’t exactly electrify the MAGA faithful. But she was always her father’s favorite, and her aforementioned liabilities could be overcome with a sufficiently enthusiastic paternal endorsement.

And once she became the standard bearer, Ivanka could market herself as both continuity and “change” — a neat trick, if she can pull it off.

In that sense Republicans could keep the Trump brand while offering a kinder, gentler, fresher face — all while making GOP history with a female presidential nominee.

This, of course, raises the question: Why would Ivanka — or any of the Trumps — want to be part of a political dynasty?

Among the many reasons, the Trump family is raking in cash. Lots of it. And as long as the next president could conceivably be a family member — a possibility that remains operable even if a Trump family member were to lose the general election in 2028 — the spigot will remain on.

That’s one of the reasons that, although Vance would normally be Trump’s obvious successor, the smart money might actually be to bet on someone with the last name “Trump.”

Now, if this dynastic denouement sounds far-fetched, of course it is. But so was electing a thrice-married casino magnate to the presidency in 2016. And so reelecting him in 2024.

We’re living in an era when the seemingly improbable isn’t just possible — it might even be likely.

Matt K. Lewis is the author of “Filthy Rich Politicians” and “Too Dumb to Fail.”

If it’s in the news right now, the L.A. Times’ Opinion section covers it. Sign up for our weekly opinion newsletter.

This story originally appeared in Los Angeles Times.