Skipping down to the 'how.'
Specifically, the WALL Act would require a work-authorized social security number in order to claim refundable tax credits (e.g., the EITC or Child Tax Credit)‐under the status quo, only a child needs a valid SSN, not his or her parent, to collect the CTC. The bill would also require applicants for federal welfare programs‐TANF, SNAP, etc.‐to actually verify their citizenship using E-Verify, rather than simply "declare" that they are a citizen.
Alright, so I'll ask the pregnant question. Why aren't these measures already in place ?