Two weeks ago at the Republican National Convention, Ivanka Trump took the stage to make a pitch for her father. Donald Trump, she said, is "color-blind and gender-neutral." At his company, she added, "there are more female than male executives. Women are paid equally for the work that we do and when a woman becomes a mother, she is supported, not shut out."

The speech was tailor-made for women voters. After outlining the challenges women face in the workforce, Ivanka Trump, who is a businesswoman with an initiative for working women, made a promise on behalf of her father: "He will fight for equal pay for equal work, and I will fight for this too, right along side of him."

It was a bold statement, considering that Donald Trump faced allegations earlier this summer that his campaign was paying its female staffers less than the men — not to mention there are entire websites devoted to chronicling the sexist comments he's made over the years.

Nevertheless, some began to wonder: Could Ivanka Trump help her father win over women whose support for Hillary Clinton is wavering?

A new Cosmopolitan/Morning Consult survey of nearly 3,000 registered voters shows that young women aren't buying it. Only 28 percent of women ages 18 to 34 said they had a favorable view of Ivanka Trump, while 42 percent had an unfavorable view.

According to the survey, young women have much deeper antipathy toward Ivanka than men of the same age and older generations of women. Forty-two percent of men ages 18 to 34 had a favorable view of Ivanka Trump, while only 36 percent had an unfavorable view. Older women had an even warmer opinion: 67 percent of women over the age of 65 had a favorable perspective on Ivanka Trump.

Overall, registered voters had lukewarm feelings about Ivanka Trump, as well as Donald Trump and his wife, Melania. Nearly half (47 percent) of voters had a favorable view of Ivanka Trump, while 41 percent had a favorable perspective on Donald Trump and 39 percent said they viewed Melania favorably.

Previous Cosmopolitan.com surveys have shown that the wage gap is an important issue for young women, and these new findings suggest that for young women — only 26 percent of whom have a favorable view of Donald Trump — his daughter's assurances about his commitment to gender equality are unlikely to make a difference in how they view the candidate. In fact, for young women voters who care deeply about issues like equal pay, they may end up highlighting the shallowness of his platform.

Last week, Chelsea Clinton called out Ivanka Trump for making phony promises. When a moderator at a Facebook Live event asked Clinton if she wanted to ask Trump about her RNC speech, Clinton replied immediately, "It would be that question: 'How would your father do that?' It's not something that he has spoken about, there are no policies on any of those fronts that you just mentioned on his website."

Contrasting her mother, Hillary Clinton, with Donald Trump, she added, "It really matters to me that my mom in this election consistently has told you how she is going to do everything, whether that's on gun control or protecting a woman's right to choose."

Young women were even less enthusiastic about Melania, who was accused during the RNC of lifting lines from first lady Michelle Obama's 2008 convention speech. A majority (55 percent) of women ages 18 to 34 had an unfavorable view of Melania Trump, while only 19 percent had a favorable view.

Once again, young women were among the most critical of the would-be first lady. Millennial men were evenly split in their opinion of her (38 percent favorable and 38 percent unfavorable). Meanwhile, a majority (57 percent) of women over the age of 65 said they had a favorable perspective on Melania Trump.

The survey shows that at least for young women, Donald Trump will need to do a lot more than send his daughter on the campaign trail with a stump speech that makes her sound like a Clinton surrogate. And even among the registered voters overall, her presence doesn't seem to have a substantial effect on their decision to support or oppose her father. When asked about Ivanka's impact on their electoral choices, only 21 percent of all respondents said she made them more likely to vote for Donald Trump in November. Thirteen percent said she made them less likely to vote for Trump, and 61 percent said she had no impact either way.

Donald Trump has, reportedly, been struggling mightily to win over women voters, and his daughter was the logical person to extend an olive branch on his behalf. But with the exception of young women, Ivanka Trump seems to have mostly succeeded in doing what her father does best — promoting her own brand.

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Amelia Thomson-DeVeaux Amelia Thomson-DeVeaux is a writer and editor based in Chicago.

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