Huma Abedin is off the campaign trail - but is still one of her boss's most valuable assets. Literally.

Hillary Clinton's once-closest aide is to headline a fundraiser in Washington DC on Thursday evening, with the chance to be photographed with her going for $5,000.

The picture is also likely to include the chance to be photographed with Anna Wintour and Diane von Furstenberg, the co-hosts of the fundraising evening for the Hillary for Victory fund.

The invitations were issued a week ago but are still thought to be valid, despite Abedin now being a target for the FBI. They were obtained by the Independent Journal Review.

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Off on fundraising duties: Abedin reported for work at Clinton's Brooklyn campaign headquarters on Wednesday while her boss was on her way from Florida to Arizona

She's still on the trail: This is the invite which tells you just how much to expect to pay for a photograph with Huma Abedin - although Anna Wintour is part of the deal too

Fundraiser: Constance Milstein is the scion of a billionaire New York property family, while the fashion designed Diane von Furstenberg will also attend

Although the invitations were issued before the FBI bombshell revelation that Abedin's emails were at the center of a fresh investigation, the night is still apparently planned.

It is likely to be a glittering occasion - and one dripping in cash.

The venue is the north-west Washington home of Constance Milstein, who is part of the Milstein family, and controls Ogden CAP properties with her brother.

The family was estimated to be worth as much as $14 billion in 2009, although since then complex litigation has split the assets among different elements of it and Constance Milstein's personal net worth is unclear.

The other two hosts also point to the wealth of those expected to attend: they are Anna Wintour, the Vogue editor-in-chief, and Diane von Furstenberg, the fashion designer.

Although it is hardly unusual for Abedin to be used for fundraisers, this will be the first since Friday's bombshell.

Previously she had been a fixture at the glitziest of events, partying in Paris in September at a Fashion Week fundraiser, and also headlining one in New York just after she separated from her husband Anthony Weiner.

Selfie fan: Abedin has been used on the glamour end of the Clinton fundaising sweep before, including in Paris in September, when she partied with Barbara Bush, the daughter of President George W Bush.

Wintour link: The Vogue editor-in-chief also runs the Met Ball in Manhattan and in May Abedin went with her husband Anthony Weiner, before she separated from him thanks to his sexting

The split with Weiner came after the disclosure he had sexted yet again - this time sending a picture to a woman in her forties which showed him clearly aroused, and their son in bed beside him.

However it was DailyMail.com's disclosure later in September that he had sexted a 15-year-old girl, who told how he spoke about rape fantasies with her, which led to the FBI investigation which now threatens her personal and professional future.

It is looking at a trove of 650,000 emails found on a laptop which was initially reported to have been shared by Abedin and Weiner during their marriage, but which her attorney insisted this week was his alone.

The emails prompted the FBI Director, James Comey, to alert Congress that the agency was looking at whether they were 'relevant' to the closed Clinton server investigation.

They have created a crisis for the Clinton campaign, which now funds itself struggling to maintain its poll lead and panicking about support in states it thought it had in the bag already.

In fact, the Abedin fundraising haul is likely to prove useful, as the cmapaign on Wednesday vowed to spend every cent it had before the election, in a reflection of the panic that it could lose.

It is yet another appearance on the fundraising circuit for Wintour, who has been a reliable friend of the campaign.

As well as giving Abedin a glossy feature in the September issue, she had her magazine endorse Clinton, the first time it had thrown its weight behind a candidate, and has worn pro-Clinton clothing time after time.