The White House last month announced that Vice President JD Vance will spearhead an effort to root out Medicaid fraud. President Donald Trump had previously signed an executive order forming a task force on the subject. This more aggressive approach is long overdue and deserves bipartisan support. It should also be applied across the board to other taxpayer-funded programs. “American taxpayers fund a vast benefits system for citizens in need that includes housing, food, medical care, cash assistance and more,” Mr. Trump’s order notes. “States administer these federally funded programs, and some states have embraced loopholes that avoid individual eligibility validation, allow self-certification of eligibility, and expand eligibility far beyond what the Congress intended. Worse ... some states have refused to institute basic fraud controls such as providing enrollee information to the federal government that would allow it to verify eligibility.” As it pertains to Medicaid, the issue is urgent.…