A comprehensive study of U.S. Census Bureau reports of welfare participation revealed Wednesday that 51 percent of immigrants — legal and illegal — access welfare programs, far more than the 30 percent of native-born Americans.

The Center for Immigration Studies analysis of the Census Survey of Income and Program Participation found “significantly higher rates” of immigrants on government programs than other government surveys, showing that Washington has done little to curb access to Medicaid, cash, food, and housing programs.