It seems like Attorney General Jeff Sessions announced a change in policy from Obama era decisions that allowed marijuana legalization to flourish in several sates. It seems that some legislators are angry because Sessions is following the law, which he is sworn to uphold.
I'm a big fan of the Constitution, especially the 10th Amendment which enshrines individual and states rights. I'm also a huge fan of this mercurial political experiment that we call the United States, where states can try out different idea and other folks can watch them to see if it's a good idea or not.
But, I admit that I am a bit confused about Congress-critters being upset that AG Sessions is enforcing the law as it is written, rather than by some bureaucratic fiat., Those same members of Congress are uniquely positioned to change the law itself. This is basic civics, stuff that we all learned in high school. I guess it's too much to expect that Congress-critters would actually apply basic civics to their job.