Doug Emhoff’s ugly secret matters — not least as yet another example of rank media hypocrisy.

On Saturday, the second gentleman Emhoff admitted to cheating on his first wife, Kerstin Emhoff, leading up to their divorce in 2009.

Worse, it seems his mistress was his children’s nanny, a teacher at their school, who also ended up pregnant from the affair, though no one’s saying what came next — and Emhoff and his wife’s campaign desperately want the scandal to end with no more questions asked.

And major media are eager to help: The New York Times made sure to emphasize in a headline that this was a “long-ago affair”; The Washington Post helpfully pointed out that “the affair ended years before he began dating Vice President Harris.”

The double standard is glaring: The press spent years breathlessly covering the tale of Donald Trump’s alleged 2006 dalliance with Stormy Daniels; no news is too old if it embarrasses Republicans.

Plus, top outlets have been busy polishing Emhoff’s image.

He appeared on Late Night with Steven Colbert at the end of May, jovially retelling the story of how he met Kamala on a blind date.

A July 26 CNN article, “How Doug Emhoff is amplifying his wife’s historic presidential bid,” called Emhoff Kamala’s “closest confidante and best surrogate”

The story of how Emhoff learned Joe Biden had dropped out — two friends he’d just walked out with from a SoulCycle class broke the news, forcing him to sprint back to his car to retrieve his phone — made the rounds on social media, feeding into the prevailing narrative: Doug’s a thoroughly personable guy, modern but goofy, and, above all, a completely supportive partner.

And Team Kamala hasn’t been shy about playing up his likability, going so far as to release merch with a photo of a young Doug on mugs and t-shirts in the official campaign store.

Sorry: As liberal journalist Mickey Kaus noted on X: “Editors: If it’s relevant to the election to profile Emhoff in your publication (typically in an absurdly positive light), this story is relevant too. If readers need to know the good details about him, they should also be told the bad details.”

First Ladies usually take on one or another moral cause; you’d expect a First Gentleman to do the same — but what does the plugged-in Hollywood lawyer who knocked up the nanny do?