An April 2017 poll conducted by Quinnipiac University found that 73% of Americans oppose federal intervention into the legal, state-based cannabis industry as it exists today. That 73% includes large majorities of both Republicans and Democrats. From the QU poll…
"American voters say 60 - 34 percent "that the use of marijuana should be made legal in the U.S.," the highest level of support for legalized marijuana in a Quinnipiac University national poll. Republicans and voters over 65 years old are the only listed party, gender, education, age or racial groups to oppose legalized marijuana.
Voters also support 94 - 5 percent "allowing adults to legally use marijuana for medical purposes if their doctor prescribes it," also the highest level of support in any national poll by the independent Quinnipiac (KWIN-uh-pe-ack) University.
Voters oppose 73 - 21 percent government enforcement of federal laws against marijuana in states that have legalized medical or recreational marijuana. No group supports enforcement in states where marijuana is legal.
Voters support 76 - 18 percent reducing the classification of marijuana as a Schedule 1 drug, the same classification as heroin. Again, all listed groups support this reduction."