Do you think it's possible the Trump administration would go after marijuana legalization?

https://www.marijuanamoment.net/trump-wants-to-delete-state-medical-marijuana-protections-from-budget-while-continuing-to-block-cannabis-sales-legalization-in-d-c/
I don't believe anything will happen. But wouldn't it be crazy if they shut down the marijuana industry all together and it was completely illegal all over the country again for both medical and recreational?
Be even crazier if they went through the records and arrested everyone who bought marijuana over the years. Technically they could since it's still against federal law, highly doubt it but ya never know.