It is understood that Melania has not asked the designer to dress her

Despite admitting that 'it is not wise to get involved in politics,' she said for the label the 'bottom line is not just about money'

While she is not a household name, Sophie has dressed current First Lady Michelle Obama multiple times as well as reality star Kim Kardashian

Citing the 'rhetoric of racism, sexism and xenophobia' of Melania's husband's campaign she said she will never work with the new First Lady

New York-based French designer Sophie Theallet spoke out against the president-elect Donald Trump in a damning open letter

Sophie Theallet has vowed not to dress Melania Trump when she becomes First Lady and urged other designers to follow her example.

Speaking on behalf of her brand, the designer tweeted a damning open letter in which she said they 'will not participate in dressing or associating in any way with the next First Lady'.

Citing the 'rhetoric of racism, sexism and xenophobia' of the president-elect's campaign, she ruled out ever working with Melania - despite not having been asked.

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Resolute: Designer Sophie Theallet has vowed never to work with Melania Trump, pictured left in Roksanda Ilincic and right wearing Gucci at the second presidential debate

Loyal: The New York-based French designer has dressed First Lady Michelle Obama, pictured in a Sophie Theallet dress with President Barack Obama, numerous times

Public: The designer, pictured, spoke out against the president-elect Donald Trump in a damning open letter

While she is not a household name, Sophie has dressed Michelle Obama numerous times over the last eight years as well as celebrities including Alicia Keys and Kim Kardashian.

Despite admitting that 'it is not wise to get involved in politics,' the New York-based French designer said that as an independent fashion brand the 'bottom line is not just about money'.

In a letter dated Thursday 17 November, she wrote: 'As one who celebrates and strives for diversity, individual freedom and respect for all lifestyles, I will not participate in dressing or associating in any way with the next First Lady.

Moral stance: Citing the 'rhetoric of racism, sexism and xenophobia' of Melania's husband's campaign she said she will never work with the new First Lady in the letter, pictured

Call to action: She also encouraged other designers to refuse to dress Melania, pictured left in Ralph Lauren after Trump defeated Hillary Clinton and right at a rally in Pennsylvania

'The rhetoric of racism, sexism and xenophobia unleashed by her husband’s presidential campaign are incompatible with the shared values we live by.

'I encourage my fellow designers to do the same. Integrity is our only true currency.'

During the election campaign, Melania's outfits have included designs by Ralph Lauren, Fendi, Gucci, Michael Kors and Dolce & Gabbana.

Appeal: As well as Michelle, pictured left wearing one of Sophie's designs in 2009, the designer's fans also include Kim Kardashian, pictured right in one of her dresses last year

Fashion fan: During the election campaign, Melania, pictured in October with Donald, has worn outfits by Ralph Lauren, Fendi, Gucci, Michael Kors and Dolce & Gabbana

Sophie, whose clothes are stocked by online store Farfetch, said working with the current First Lady was 'a highlight and an honor'.

'She has contributed to having our name recognized and respected worldwide. Her values, actions and grace have always resonated deeply within me,' she added.