Texas Attorney General Ken Paxton filed a lawsuit to halt a Houston-area basic income program.Brandon Bell/Getty ImagesTexas Attorney General Ken Paxton is suing to block a Harris County basic income program.The lawsuit follows a case in April that halted $500 monthly payments for low-income families.Paxton argues GBI is unconstitutional, but local leaders continue to advocate for cash aid.Texas Attorney General Ken Paxton is calling guaranteed basic income "unlawful."A lawsuit, filed by Paxton on September 19, is requesting a temporary block on a GBI program in Harris County.