Former US President Joe Biden has used his first speech since leaving office to criticize incumbent President Donald Trump administration's welfare policies, the BBC reports.

Biden told a conference in Chicago that the government had "taken a hatchet" to the social security system, which Donald Trump and Elon Musk—who is leading the White House's cost-cutting efforts—claim is beset by fraud.

The administration wants to cut staff at the agency responsible for spending $1.6 trillion in benefits a year.

Biden did not refer to Trump by name during his speech on Tuesday, but said: "In fewer than 100 days, this new administration has done so much damage and so much destruction. It's kind of breath-taking."

He described social security as a "sacred promise," adding: "We know just how much social security matters to people's lives."

Biden—who was speaking at a disability rights event—did not address his departure from the White House or the 2024 presidential election during his remarks.

The Social Security Agency (SSA) provides a base income for people in the US who are retired or cannot work because of a disability. It covers about 67 million Americans, primarily older citizens.

Democratic politicians have repeatedly accused the administration of planning sweeping social security cuts.

Members of Elon Musk's Department of Government Efficiency have been making cuts to the agency since February, with the target of slashing 7,000 jobs—about 10% of its total staff.