The Horse Racing Industry seems to get that sometimes the problem is too big for states to handle and "patchwork system of state regulations [make] it nearly impossible to treat the problem on a national scale."

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Restoring integrity to horse racing | TheHill

thehill.com/blogs/.../253426-restoring-integrity-to-horse-racing

The Hill

16 hours ago - This bill would designate the independent, non-profit U.S. Anti-DopingAgency (USADA) to establish consistent regulations