J. Scott Applewhite / AP

The FDA announced today that U.S. marshals raided StemImmune, a San Diego-based clinic offering a smallpox vaccine to cancer patients, on Friday as part of an crackdown on stem-cell clinics offering unapproved and unproven treatments.

The vaccine won't generate smallpox for people with healthy immune systems, but could cause severe medical problems for cancer patients.

Clinics like StemImmune have been on the rise in the past several years, per The Washington Post. The clinics capitalize on the uncertainty of the developing field, offering unproven and potentially dangerous treatments. FDA Commissioner Scott Gottlieb noted the potential of regenerative medicine, but said "a small number of unscrupulous actors" put the field at risk.

What's next: The FDA says it will use "whatever legally enforceable means are necessary to protect the public health." New framework to establish clear guidelines and regulations will be advanced this fall.

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GAO finds Chad Wolf, Ken Cuccinelli are ineligible for top DHS roles

Photo: CQ-Roll Call, Inc via Getty Images

Acting Homeland Security Secretary Chad Wolf and his acting deputy Ken Cuccinelli are ineligible to be serving in their positions, the Government Accountability Office (GAO) decided in a report released Friday.

Why it matters: While the finding has no immediate power, it could be important evidence in litigation over policies enacted under Wolf and Cuccinelli's leadership, said America's Voice's Ur Jaddou, who served as chief counsel to U.S. Citizenship and Immigration Services (USCIS) under President Obama.

The many divisions over Trump's methane rollback

Illustration: Rebecca Zisser/Axios

EPA's decision to cut regulation of methane is laying bare an oil-and-gas industry divide and setting the stage for political battles this fall and beyond.

Why it matters: Methane is an extremely powerful greenhouse gas and the industry is a key emissions source.

Kushner says Trump didn't promote false Kamala Harris birtherism theory

White House senior adviser Jared Kushner told "CBS This Morning" on Friday that he does not believe President Trump promoted a baseless claim that Sen. Kamala Harris is ineligible to be vice president.

Driving the news: During a press briefing on Thursday, Trump did not question the veracity of a Newsweek op-ed that inaccurately claimed Harris may be ineligible for the office due to her parents' naturalization status at the time of her birth. Harris is an American citizen and was born in Oakland, Calif.