After winning primaries in California, New Jersey, New Mexico, and South Dakota on Tuesday night, Hillary Clinton has decisively locked up the Democratic nomination, becoming the first woman in history to secure the presidential nomination for a major political party.

In her victory speech, Clinton celebrated the milestone and credited the “generations of women and men who struggled and sacrificed and made this moment possible.”

Despite the historic nature of Clinton’s victory, there are conservative women’s organizations, many young people, and even some progressive groups who see her big win as a loss for the issues they care about.

The Independent Women’s Forum, a leading women’s group on the right, believes Clinton’s policies will ultimately backfire on women and families.

“While we applaud any woman who puts the hard work into running for public office, Americans ought to consider the real impact of a President Hillary Clinton,” said a statement from the group released on Tuesday. “While she has tried to present herself as a champion for women’s rights, Mrs. Clinton – like so many other progressives in Washington – supports policies and legislation that will ultimately backfire on women and their families . Whether it’s her support of government-run health care, higher taxes, more energy regulations, or the micromanaging of the labor force, Clinton’s vision for America is one in which an even greater government would be at the center.”

Young voters — many of whom support Senator Bernie Sanders’ more progressive platform to relieve student debt, subsidize college tuition, and raise the minimum wage — are reluctant to transfer their allegiance to Clinton. Some Sanders supporters still believe he has a shot if he is able to sway Clinton’s superdelegates before the party’s convention at the end of July.

Moumita Ahmed, the 26-year-old founder of the group Millennials for Bernie, said she hopes Sanders stays in the race and continues to pressure Clinton on the issues.

“He needs to be there,” she told the New York Times. “He has to, because it’s not about him. It’s really about our issues. Unless he stays there, there’s no way we can put free college into the platform committee.”

Despite lacking a clear path to the nomination, Sanders has vowed to continue his campaign through the final Democratic primary in Washington, D.C. next week, and possibly through the July convention.