WASHINGTON — Congressional Dads Caucus founder Rep. Jimmy Gomez (D-Calif.) confessed Tuesday that he cheated on his wife — after The Post in April revealed he was seen kissing a congressional aide outside a DC party.

The Post’s report unleashed a House Ethics Committee investigation that uncovered sordid new details — crushing Gomez’s carefully crafted public image as a doting family man. 

“Years ago, I made personal mistakes outside my marriage that have caused real pain to my wife and family,” Gomez told CNN, describing the extramarital relations as “consensual.”

“I sincerely apologize to my wife, family, friends and the people that I have the privilege to serve.”

The Los Angeles Democrat was spotted making out with a much younger congressional aide for a different lawmaker outside the home of then-Rep. Eric Swalwell (D-Calif.) ahead of the August 2023 recess.

Gomez, who is married, was kissing the aide two decades his junior outside Swalwell’s backyard bash.

Attendees did not recall seeing Gomez’s wife or then-11-month-old son at the party.

Just months prior, Gomez in January 2023 launched the Dads Caucus and wore his baby son in a sling around his neck during marathon votes for House speaker.

“Dads need to do more of our part both at home and in Congress advocating for policies that uplift parents and children,” his caucus website declares.

While trumpeting his family role, sources said Gomez, Swalwell and Sen. Ruben Gallego (D-Ariz.) were busy boozing and behaving boorishly as members of the so-called “Cool Kids Clique.”

Swalwell resigned in disgrace following a series of sexual misconduct allegations against him earlier this year.

“This guy [Gomez] is a sleazebag. He should resign and use his free time to trade war stories with Swalwell,” said one Democratic source familiar with the matter.

Gomez and the younger Hill staffer were seen kissing by a stunned group of Democratic congressional aides, two of whom recounted their surprise to The Post. A third source heard of Gomez’s alleged relationship with the woman from additional Democratic sources.

Gomez, a close Swalwell friend, strongly denied The Post’s reporting in April and his confession did not specify particular wrongdoing.

A spokesman did not immediately offer comment on whether he was confessing to the relationship reported by The Post — after his blanket denials.

Gomez, who represents a heavily Democratic district in Los Angeles, also gave no indication that he planned to resign.

“Although my actions were consensual in nature and haven’t violated the law or House ethics rules, that doesn’t diminish the impact that these mistakes have made on those I care about the most,” Gomez said in his statement.

“I take full responsibility and have committed myself to working through the pain privately with my wife and family.”

Gomez said he was taking action to remedy his misconduct.

“I sought professional assistance to help re-center and heal the relationships that mean everything to me, and move forward with the honesty, transparency, and respect that everyone deserves from the people they love. I continue to do this work,” he said.

Gomez’s best-known challenger for re-election is Angela Gonzales-Torres, who has the support of the left-wing Justice Democrats and the California Working Families Party. The two could face off in the Nov. 3 election due to California’s nonpartisan runoff system.

The incumbent’s confession of infidelity is the latest salacious story to capture headlines in the midterms, with Maine Democratic Senate front-runner Graham Platner facing fresh negative stories about inappropriate text messages.