The institute based by President George W. Bush issued an pressing name on Wednesday for Congress to resume the worldwide AIDS program often called PEPFAR, a centerpiece of Mr. Bush’s overseas coverage legacy that has develop into a sufferer of abortion politics on Capitol Hill.

PEPFAR — the President’s Emergency Plan for AIDS Aid — has saved an estimated 25 million lives since Mr. Bush based it 20 years in the past. The $6.9 billion program, which Congress has beforehand reauthorized each 5 years, has lengthy had bipartisan assist and is commonly cited as a robust instance of America’s ethical management on this planet.

However it faces an unsure future. The laws authorizing this system lapsed on Sept. 30 after some Home Republicans claimed, with out proof, that the Biden administration was utilizing it to advertise abortion abroad. These Republicans wish to connect abortion-related restrictions to PEPFAR that might doom its reauthorization within the Democratic-controlled Senate.

The Bush Institute, which is nonpartisan, has to this point been reluctant to step into the controversy.

However in a bipartisan letter signed by greater than 30 retired ambassadors, overseas coverage luminaries and organizations — together with the Carter Middle, based by former President Jimmy Carter — the institute pleaded with Congress to reauthorize this system. It argued that along with saving lives, PEPFAR was countering the rising affect of Russia and China and burnishing America’s repute as a worldwide chief.

“PEPFAR is a mannequin of United States management and a supply of nice nationwide delight,” the letter mentioned. “It is without doubt one of the most profitable worldwide improvement applications since World Struggle II. Abandoning it abruptly now would ship a bleak message, suggesting we’re not capable of put aside our politics for the betterment of democracies and the world.”

For now, at the least, PEPFAR is continuous to function. However advocates worry that, with out the underlying authorization, this system will likely be topic to funds cuts and even elimination sooner or later. And so they say this system is weaker with out the bipartisan imprimatur of Congress.

“The traditional conservative speaking level is that we don’t wish to fund applications that aren’t approved,” mentioned Keifer Buckingham, the advocacy director on the Open Society Foundations and a longtime PEPFAR supporter. She added, “It’s additionally honest to say that in international well being and international well being politics, optics matter.”

Mr. Bush himself didn’t signal the institute’s letter; individuals near him have mentioned he’s making an attempt to make use of his voice judiciously. Amongst those that signed was Dr. Deborah L. Birx, a senior fellow on the Bush Institute who ran PEPFAR below Presidents Barack Obama and Donald J. Trump, and in addition served as Mr. Trump’s coronavirus response coordinator.

In an interview on Wednesday, Dr. Birx referred to as on President Biden or his advisers to take a extra aggressive function in getting PEPFAR reauthorized. She advised they convene a small group of Home and Senate lawmakers to “say that is personally necessary to him” and to impress upon Congress the significance of demonstrating to the world “how we work collectively for example our compassion for others.”

“Somebody has to step in and take a management function,” she mentioned, including, “Ultimately, if reauthorization doesn’t occur, it’s as a result of the present administration didn’t prioritize it and didn’t compromise and discover a path ahead.”

The White Home didn’t reply to a request for remark.

Mr. Bush has made no secret that he desires this system reauthorized. Over the summer season, he mentioned its future with Consultant Michael McCaul, a Texas Republican and the chairman of the Home Overseas Affairs Committee, over lunch on the Bush household compound in Maine. In mid-September, he revealed an opinion piece in The Washington Publish urging Congress to put it aside.

At the moment, PEPFAR’s supporters on Capitol Hill thought they have been making progress towards breaking the logjam. Consultant Barbara Lee, a California Democrat who’s a number one proponent of this system, mentioned in an interview then that she was working with a freshman Republican, Consultant John James of Michigan, on a bipartisan reauthorization invoice.

However the effort was placed on maintain final month within the face of a attainable authorities shutdown, and it remained stalled whereas Home Republicans wrangled over who can be the subsequent speaker. Dr. Birx mentioned she remained hopeful that this system might be reauthorized by Dec. 1, which is World AIDS Day.