NY Democratic Senate hopeful Julia Salazar was accused of having affair with ...

She has been outed as a former Republican and accused of embellishing her radical socialist credentials with tall tales about her working class, immigrant roots.

And now DailyMail.com can reveal that New York Democratic state senate candidate Julia Salazar was accused of having an affair with Mets legend Keith Hernandez during a bitter four-year libel battle with his ex-wife.

Keith Hernandez denies they were lovers and his ex-wife says she never accused him of an affair.

His ex-wife Kai Hernandez told police in 2010 that Salazar had stolen $11,800 in cash, $1,175 in Pottery Barn vouchers and $950 worth of wine while house-sitting for her in Jupiter, Florida.

She also claimed that that 27-year-old Salazar, who hopes to unseat New York State Sen. Martin Dilan in the September 13 Democratic primary, stole her personal information and tried to use it to access her bank account.

The Columbia University student was arrested, interrogated and 'humiliated' before cops dismissed the allegations and she fired back at Hernandez, 54, with a defamation lawsuit.

Socialist pin-ups: Julia Salazar (right) is running for a New York state senate seat hoping to capitalize on the momentum of Alexandria Ocasio-Cortez, who won an upset Democratic primary and who has appeared with her at campaign events

Socialist pin-ups: Julia Salazar (right) is running for a New York state senate seat hoping to capitalize on the momentum of Alexandria Ocasio-Cortez, who won an upset Democratic primary and who has appeared with her at campaign events

Salazar was accused of having an affair with Mets star Keith Hernandez, (right)64, during his divorce from ex-wife Kai (right) in 2010, DailyMail.com can exclusively reveal

Salazar was accused of having an affair with Mets star Keith Hernandez, (right)64, during his divorce from ex-wife Kai (right) in 2010, DailyMail.com can exclusively reveal

Hernandez further accused Salazar of interfering with her marriage and having an affair with Flushing favorite Keith who is 37 years her senior, according to court documents seen by DailyMail.com.

The ex-first baseman was listed as a witness for Salazar when the case was set for trial in March 2017, however both sides settled at the last moment.

Salazar shot to prominence on the coattails of fellow socialist Alexandria Ocasio-Cortez who upset Joe Crowley in the Democratic primary for New York's 14th congressional district.

But her claims about growing up among poor, working class, Colombian immigrants have begun to unravel in recent days, with her own family members coming forward to contradict her.

Salazar has been criticized for identifying as a Jew despite her mother Christine insisting she was baptized a Catholic and her brother Alex stating that none of their relatives are Jewish - and her uncle is a priest.

Opponents also point out she registered as a Republican in Florida before performing a political flip flop and declaring herself a socialist after moving to Brooklyn, New York in 2017.

Salazar's extraordinary spat with Hernandez dates back to 2010 when she was a 19-year-old Columbia University freshman who 'graduated top of her class at high school' and Hernandez was divorcing her baseball player husband of five years.

'Keith had known Julia since the time she was a young girl. Julia considered Keith to be a father figure,' her December 2013 complaint reads.

At the time she lodged the suit, Salazar was living at her mom's three-bedroom townhouse on an exclusive, gated marina development in affluent Jupiter, Florida.

Keith Hernandez owned the neighboring townhouse, according to public records. Salazar's mom Christine paid $194,000 for the swish property on the banks of the Loxahatchee River in 1998. It's now worth around $735,000. 

A spokeswoman for SNY, the Mets-owned sports channel that broadcasts their games and for whom Keith Hernandez has been a long-running commentator, said of the alleged affair told DailyMail.com Wednesday: 'Keith denies the allegations'.

Salazar says that when Hernandez asked her to house-sit and look after her dogs for a week in July 2010, she found 'drug paraphernalia to include open syringes, guns and 25 Pottery Barn gifts totaling $1,175.'

Court documents show Keith, who retired in 1990, had known Salazar since she was a young girl and she had considered him a 'father figure.'

His ex-wife Kai, (right) accused her of stealing more than $11k in cash, and trying to access her bank account with her personal information

Court documents show Keith, who retired in 1990, had known Salazar since she was a young girl and she had considered him a 'father figure.' His ex-wife Kai, (right) accused her of stealing more than $11k in cash and trying to access her bank account with her personal information  

Hernandez, who is now a Mets commentator for SNY, had a brief acting career and famously appeared on two episodes of Seinfeld in the 90s

Hernandez, who is now a Mets commentator for SNY, had a brief acting career and famously appeared on two episodes of Seinfeld in the 90s

The suit says she called former Met Keith, 64, for advice. He lived elsewhere but urged her 'to take photos of the objects found and to send him a list of the narcotics.'

When Salazar agreed to house sit again throughout August 2010, the two-time World Series champ is said to have turned up at his $1.1 million former marital home with an attorney and two officers from the Tequesta Police Department.

'Keith proceeded to have Julia tell the officers about the guns, paraphernalia and gift cards that she found in the house,' the suit states.

'The officer wrote up a report and specifically said to Julia that her name would not appear in the report.'

The suit alleges that Hernandez, a realtor whose first husband Glenn Thompson died in the 9/11 attacks, was by then living with a new fiancée who had convictions for fraud and theft.

She filed several 'suspicious' insurance claims over the summer of 2010, including reports of burglary and theft, the complaint alleges.

Salazar claims that Hernandez and possibly an accomplice 'orchestrated a scheme whereby a female who sounded like Julia would attempt to access Kai's bank account, via the phone at UBS Investment Bank.

This is the former Florida home of Julia Salazar. The Columbia University graduate grew up in a gated marina development in an affluent part of Jupiter, and public records show Keith Hernandez owned the neighboring townhouse

This is the former Florida home of Julia Salazar. The Columbia University graduate grew up in a gated marina development in an affluent part of Jupiter, and public records show Keith Hernandez owned the neighboring townhouse

Salazar's mother Christine paid $194,000 in 1998 for the property which is now worth around $735,000. Her mom pushed back against Julia's claims that they were poor or working class, revealing they were financially comfortable

Salazar's mother Christine paid $194,000 in 1998 for the property which is now worth around $735,000. Her mom pushed back against Julia's claims that they were poor or working class, revealing they were financially comfortable

'Following the execution of her scheme, Kai was contacted by her personal banker who played a recording of the female's voice who allegedly attempted to access Kai's account.

'Kai then falsely, maliciously and intentionally alleged that the person attempting to access her funds was Julia when she knew it was not.'

The suit

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