Negotiations between Harvard University and the White House have stalled, leaving both sides uncertain about how to finalize a landmark settlement that appeared near completion just weeks ago.

The White House has not issued any new demands to Harvard as part of a potential deal to restore billions of dollars in research funding and end a crush of federal investigations. But the steady back-and-forth that characterized earlier talks has significantly slowed in recent weeks.

One major reason is an emerging divide within the administration between aides eager to deliver President Trump a political victory by announcing a deal and those who contend the current framework is too favorable to Harvard. Some Trump advisers argue that one way to strengthen the agreement would be to subject Harvard to an independent monitor who would ensure compliance. Harvard has consistently opposed that idea.

This article is based on interviews with eight people familiar with the negotiations, all of whom insisted on anonymity to discuss private deliberations.

Talks have also slowed in recent weeks with Cornell University and Northwestern University, although the reasons are unclear. The Trump administration targeted both schools as part of its broad assault on higher education, a campaign that the government has depicted as essential to expunging perceived liberal bias from college campuses.

The government’s tactics — cutting research grants, opening investigations and demanding hundreds of millions of dollars or more in settlement payments — have plunged campuses into financial and political crises. Some schools, like Columbia University, negotiated deals with the Trump administration.