Attorneys general in 20 conservative-led states, including Georgia, warned CVS and Walgreens on Wednesday that they could face legal consequences if they sell abortion pills by mail in those states.

A letter from Republican Missouri Attorney General Andrew Bailey to the nation’s largest pharmacy-dispensing companies was co-signed by 19 other attorneys general, warning that sale of abortion pills would violate federal law and abortion laws in many states. Missouri is among states that implemented strict abortion prohibitions last summer after the Supreme Court ruling overturning Roe v. Wade.