President Donald Trump’s nomination of Amy Coney Barrett is poised to give the Supreme Court its most conservative female justice in history but is unlikely to accomplish the one thing that could help seal his re-election — a new surge of support from women, a segment of the electorate his campaign has struggled to attract.

Trump on Saturday named Barrett to replace the liberal jurist and feminist icon Ruth Bader Ginsburg, fulfilling his pledge to nominate a woman.

The difference between the two women’s views couldn’t be more stark: Ginsburg was a champion of preserving a woman’s right to an abortion, while Barrett says abortion is “always immoral” and has already ruled as a circuit court judge to restrict the procedure.

If the Senate confirms Barrett, which is likely given its Republican majority, the pick keeps the court’s gender balance at six men and three women. Barrett would be the only woman on the court’s conservative wing.

The move poses a risk for Trump. Since Sandra Day O’Connor became the first woman on the court almost 40 years ago, the reaction to Barrett’s appointment and polling data suggests women are looking at a nominee’s potential rulings and judicial record as much or more than her gender.

Conservative women who oppose abortion rights are already in Trump’s camp, but they are a small minority of women voters. Surveys show that very few women, if any, are going to switch their support from Democratic nominee Joe Biden based on Trump’s choice of a female jurist. Instead, there are signs it could actually drive Democrats to polls.

Republican activists say their voters are eager to hear Barrett’s voice from the bench. Barrett’s appointment “energizes the very same voters, the women voters, that are faithful Catholics and evangelical and encourages them to once again return Donald Trump to the White House,” said Penny Nance, president of Concerned Women for America.

But with the election just more than a month away, Trump’s campaign was hoping a female nominee could attract some new women voters, especially in the suburbs.

“For Donald Trump to win, he needs to close that gap with women,” said Sarah Longwell, a Republican strategist who founded Republican Voters Against Trump. The White House seems to think nominating a woman will help them with women voters, she said.

“What they don’t realize is that it may actually backfire on them because a lot of these suburban women that they need actually won’t like the idea of somebody who is very far right ideologically taking Ruth Bader Ginsburg’s seat on the Supreme Court.”

Most women don’t support Trump. A national poll by Quinnipiac University released Wednesday showed 58% of women backed Biden, while 38% backed Trump — a 20-point gap that amounted for the entirety of Biden’s overall lead. Among men, Trump and Biden were essentially tied at 47% to 46%.