Hillary Clinton apologized Friday after gay-rights and AIDS activists assailed her for saying Nancy Reagan helped start a “National conversation” about AIDS in the 1980s, when protesters were struggling to get more federal help in fighting the disease.

Clinton, one of two contenders for the Democratic presidential nomination, made her initial comments in an interview with MSNBC during its coverage of Nancy Reagan’s funeral.

Soon after the interview aired, MSNBC’s Twitter feed was flooded with comments accusing Clinton of misrepresenting history and insulting the 1980s activists who pressured elected officials to step up the response to AIDS.

“While the Reagans were strong advocates for stem cell research and finding a cure for Alzheimer’s disease, I misspoke about their record on HIV and AIDS. For that, I am sorry,” Clinton said on her Twitter account.

In her MSNBC interview, Clinton was complimentary to both Reagans with regard to their stance on AIDS.

Peter Staley, a veteran AIDS activist based in New York, tweeted that Clinton’s remarks were “The most offensive thing possible 4 my generation of LGBT Americans.”

Nancy Reagan