It's not terribly common for years-old videos from "Access Hollywood" to gain relevance in presidential politics, but then, it's not terribly common for celebrities to win the Republican presidential nomination.

One such video from the celebrity-obsessed show trickled around social media shortly after Donald Trump told The Post's Philip Rucker that he was worried about the general election being rigged.

"The voter ID situation has turned out to be a very unfair development," Trump told Rucker, referring to recent court decisions invalidating restrictions on voting. "We may have people vote 10 times. It’s inconceivable that you don’t have to show identification in order to vote or that the identification doesn’t have to be somewhat foolproof."

How does this relate to "Access Hollywood"? As it turns out, the program tagged along with Donald Trump in 2004 when he tried to vote in that year's presidential election. And Trump quickly learned that the problem with voting usually isn't that people can vote improperly — it's that people can't vote at all. (You can watch the segment here.)

The first place Trump went, he wasn't listed in the voter rolls.

"We rolled into his polling place, and his temperament quickly changed," the show's Billy Bush narrated. Which is a nice way of saying Trump got mad. An aide to Trump insisted that his paperwork said they were in the right place, but the poll workers disagreed. They sent him to another location.

"520 Park Avenue?" Trump asked, confirming the new address. "I like that location better. It's a richer location."

In contrast to the first stop, where there was no line, the richer location had a line out the door. ("You actually stand in line?" one woman asked of Trump. He said yes.)

Trump approached the table, telling the poll workers to "make sure there's no cheating here, right?" There wasn't, and since Trump wasn't on the rolls there, either, they sent him away.

At a third location: No Donald Trump. Bush explained to the camera that the problem originated with the Board of Elections somehow confusing Trump's registration with that of Donald J. Trump Jr. Trump had to fill out a provisional ballot, which he did in the back seat of his limo.

At one point he holds up the completed ballot, but, recorded in the pre-high-definition era, it's hard to make out how he cast his vote.

When Bush asks Trump how he voted at the very end of the segment, Trump pretends he can't hear him. His actual vote is a mystery.

But this allows us a quick little dive into the other ways in which that scene was particularly odd. For example: Billy Bush is a Bush — the nephew of George H.W. Bush and first cousin to George W. Bush. George W. Bush was on the ballot that Trump completed, of course, since it was 2004. The president's cousin was asking 2016 nominee Trump if he voted for Bush. In 2016, the Bush clan has been clear that their votes will not be cast for Trump.

We know that Trump's ballot was counted (unlike many provisional ballots) because we've seen his voter history, which we reported on last November. Trump was only a sporadic voter, so it isn't a big surprise that he wasn't clear on where to go or what to do.

That voting record does offer some insight into how Trump may have voted, though. If he voted on party lines, as most voters do, then he cast his ballot not for Bush but for John Kerry.

That's because back in 2004, Donald Trump was a Democrat.