The Clinton Foundation has become one of the world’s major generators of charity, mobilizing global efforts to confront issues like health, climate change, economic development and equality for women and girls.

Since its inception in 2001, it has raised nearly $2 billion in cash and pledges with millions more flowing in from an impressive array of donors, including foreign governments, financial chieftains and domestic donors, many of the latter political heavyweights.

All of which underlines the need for Hillary Rodham Clinton, in her all but certified role as a Democratic presidential candidate, to reinstate the foundation’s ban against foreign contributors, who might have matters of concern to bring before a future Clinton administration. This was a restriction Mrs. Clinton worked out with the Obama administration to allay concerns of potential conflict of interest when she became secretary of state in 2009.

According to a report this week in The Wall Street Journal, the ban was dropped after Mrs. Clinton left the administration in 2013, leading to a resumption of donations from foreign governments and agencies to the foundation’s Clinton Global Initiative, which sponsors conferences of world leaders from government, industry and philanthropy. Donors have included the United Arab Emirates, Germany, Saudi Arabia, Australia, Oman and a Canadian government agency reported to be involved in promoting the Keystone XL pipeline.