The U.S. Justice Department has served a hands-off attitude to all state's legal marijuana trade since former Attorney General James M. Cole released a memorandum in 2013.
Sessions has argued that he does not see marijuana use as a states' rights issue, however.
Medical marijuana in Pennsylvania is approved for use of PTSD. Eight states, and the District of Columbia, have so far legalised the drug for recreational use, starting with Colorado and Washington in 2012.
The Trump administration announced Thursday that it was rescinding an Obama-era policy that had allowed states to legalize marijuana, raising questions about how Maryland's fledgling medical cannabis industry might be affected.
Indeed, the sudden move by Sessions appears to have caught many key Republican politicians off guard, but ready to strike back. They cite the 10th amendment to the U.S. Constitution, which says states have all powers that the constitution does not delegate to the U.S. government or deny them. Alaska allows recreational marijuana use.
For another thing, Sessions is a deep-south southerner, and as we all know, states' rights are as sacred to southerners as the Virgin Mary is to Catholic bishops.
Rohrabacher said a better, more permanent solution is a bill he submitted past year that amends the Controlled Substances Act so it doesn't apply to people who produce, possess or deliver marijuana in compliance with state marijuana laws. The American people overwhelmingly support the legalization of marijuana and oppose federal intervention in state marijuana laws by even wider margin.
That survey and another conducted by Strategic Marketing & Research Insight group showed that "recreational cannabis is of limited interest to USA leisure travelers and is not a motivator of travel to a destination", Wooden said.
Under the Sessions policy reversal, a cancer patient now using a marijuana-based drug to ease pain or nausea may have that right taken away.
On Jan. 4, Mr. Sessions said that prosecutors should no longer adhere to a Barack Obama directive that encouraged them to decline prosecutions of regulated marijuana dispensaries. Federal prosecutors where marijuana is legal under state law will now be free to decide for themselves how aggressively to enforce federal laws. Courts have interpreted Rohrabacher-Farr to mean that federal authorities can't go after legal medical marijuana businesses in those states, she said. This information was discovered by the University of Oxford, the American Chemical Society, the American Lung Association, the University of California in Los Angeles, American University, Center for Brain Health at the University of Texas in Dallas, the University of South Carolina, Colorado's Rocky Mountain HIDTA Report, University of Washington, National Academy of Sciences, Engineering and Medicine, the New England Journal of Medicine, the Washington State Traffic Safety Commission and by the federal advisory panel. The marijuana industry is already measured at 7.9 billion dollars and the DOJ position threatens that growth. He's joined by Sean Kiernan, an army vet who uses medical marijuana to treat PTSD.
Even with the apparent change in direction from the Trump administration, those in the medical cannabis industry have some protection - for now - through a provision called the Rohrabacher-Farr Amendment.