The federal government choose to relax their enforcement policy in deference to changing national attitudes. But prior to they dealt with the mismatch on mariju

The federal government choose to relax their enforcement policy in deference to changing national attitudes. But prior to they dealt with the mismatch on marijuana laws by... going into the states and enforcing on the business owners, basically forcing them into bankruptcy. The state may have legalized such businesses but they could not protect them from federal authority.