WASHINGTON — President Trump’s Council of Economic Advisers declared on Thursday that America’s long-running war on poverty “is largely over and a success,” as it made the case for imposing new work requirements on Americans who benefit from federal safety net programs.

The report contends that millions of Americans have become overly reliant on government help — and less self-sufficient — and provided data intended to support the administration’s goal of tying public benefit programs more closely to work.

In April, the president signed an executive order to expand the use of work requirements — which condition benefits on recipients working, preparing for work or participating in similar activities such as community service — and the White House has pushed for legislative changes to certain assistance programs to make such requirements more uniform.

The White House report, using census data from 2013, found that more than one-half of working-age, non-disabled beneficiaries of Medicaid, federal housing support and food stamps worked fewer than 20 hours per week in the month in which they received benefits from those programs. The report makes the case that receiving Medicaid or other federal benefits can discourage Americans from working more, since they lose access to those benefits if their incomes climb too high.