MANCHESTER, N.H. — The national president of Planned Parenthood stumped for Hillary Clinton for president here today, warning that a Republican-led defunding of the women’s health organization — which most of the GOP candidates have pledged — would cause “devastation” for women’s access to healthcare.

“What it would mean is millions of people would lose access to healthcare, not only at Planned Parenthood, but at women’s health care centers all over the country,” Cecile Richards told Boston Herald Radio.

She cited her own state of Texas, which did defund the organization, as a cautionary tale.

“Dozens of women’s health centers shut down,” she said, citing Planned Parenthood as a stop gap for low income women. “Thousands of women can’t get access to basic cancer screenings, birth control…the devastation if the Republicans got into office in terms of what they are doing to turn the clock back to women’s access to healthcare would be enormous and far beyond the impact on Planned Parenthood.”

The group's Clinton endorsement is the first for Planned Parenthood in a primary, Richards said, adding the possibility of the next president making several appointments to an aging Supreme Court was part of the motivation.

“The future of the Supreme Court is on the ballot next November, it’s so important we have folks who will stand for women’s rights,” Richards said. “It’s really distributing to think there are people running for President of the United States who have pledged, not only to end the ability for folks to go to Planned Parenthood for basic preventive case (like) breast cancer screenings, birth control. And pledged to end access to safe and legal abortion, which would basically take us back to the 1950s.

“These are values that are not supported by the American public,” she said. “It is going to be a critical election for anyone who cares about the ability of woman and families to get access to care.”

After Planned Parenthood endorsed Clinton, Vermont U.S. Sen. Bernie Sanders mentioned the organization as an example of “establishment support” flowing Clinton’s way.

“If providing healthcare to 2.5 million people every single year, in ever single state in America and being on the front line in fighting for reproductive rights and access at a time when women’s rights are under attack like never before, if that’s being part of the establishment, then I guess sign me up,” Richards said today.