U.S. President Donald Trump signed an order aimed at ending federal benefits for people in the country illegally, the White House said Wednesday, his latest in a blizzard of moves to crack down on immigration.

The White House said the order seeks to end "all taxpayer-funded benefits for illegal aliens," but it was not clear which benefits will be targeted. People in the country illegally generally do not qualify except for emergency medical care. Children are entitled to a free K-12 public education regardless of immigration status under a 1982 Supreme Court ruling.

The order notes that a 1996 welfare overhaul denies most public benefits to people in the country illegally but says that law has been gradually undermined. "Over the last 4 years, in particular, the prior administration repeatedly undercut the goals of that law, resulting in the improper expenditure of significant taxpayer resources."

Trump's words appear directed at former President Joe Biden's extensive use of parole authority to allow people in the country temporarily, including more than 900,000 through an online appointment app called CBP One used at border crossings with Mexico and more than 500,000 Cubans, Haitians, Nicaraguans and Venezuelans who flew to the United States at their own expense with a financial sponsor. Trump immediately ended both programs.

Biden also granted parole to nearly 300,000 people from Ukraine and Afghanistan.

People granted parole for at least a year are considered "qualified noncitizens," making them eligible for some income-based benefits, but only after five years. They include Medicaid and the Children's Health Insurance Program, which provides coverage to children in families that earn too much money to qualify for Medicaid, according to the U.S. Centers for Medicare and Medicaid Services.

Some states have shortened the five-year wait.

Trump's order appears to have other targets, some already subjects of earlier edicts and Justice Department lawsuits. It directs all departments and agencies to identify federal benefit spending that is inconsistent with the 1996 welfare law. It also seeks to ensure that state and local governments are not using federal funds for policies that support "sanctuary" policies or encourage illegal immigration.

Trump signed 10 executive orders on immigration on his first day in office. They included ending automatic citizenship for people born in the United States and asylum at the southern border. The birthright citizenship order has been temporarily halted in court.