Also if you look at the Democrats, some there are also anti-MJ, especially Joe Biden and O'Malley. For the record:
Joe Biden (D): As a senator, Biden took a hard line against marijuana. He spearheaded legislation that created the federal “drug czar” position and mandatory minimum sentencing for marijuana-related offenses.
Jeb Bush (R): At the 2015 Conservative Political Action Conference, he said he supports states’ rights to establish their own marijuana policies and that the federal government should not interfere in their decisions. During a radio interview in December 2015, he said he supports marijuana decriminalization.
Ben Carson (R): He said that he would probably enforce federal marijuana laws in states such as Colorado and Washington, which have made it legal for adult use, but allow for some form of medical use. He also said that, as president, he would “absolutely” continue the war on drugs and “intensify it.”
Chris Cristie (R): Christie opposes the legalization of marijuana and has spoken out repeatedly against states that have legalized marijuana for adults. He also opposed New Jersey’s medical marijuana law.
Hilary Clinton (D): Clinton has expressed support for legal access to medical marijuana and more research into the medical benefits of marijuana. She waffles on full legalization though. When asked about the legalization laws approved in Colorado and Washington, she said “states are the laboratories of democracy” and that she wants to see what happens in those states prior to taking a position in support or opposition to such laws.
Ted Cruz (R): Cruz said he is opposed to the legalization of marijuana for adult use, but he believes states should have the right to establish their own marijuana policies.
Carly Fiorina (R): Fiorina does not support the legalization of marijuana for any purpose, including medical use. She recently expressed support for decriminalization though. She has also expressed support for the rights of voters to establish their own state marijuana policies.
Jim Gilmore (R): Gilmore opposes the legalization of marijuana for any purpose. In 2000, he signed onto a National Governors Association policy plank that urged the federal government to increase funding for the War on Drugs and declared legalization is “not a viable alternative, either as a philosophy or as a practical reality.”
Mike Huckabee (R): Huckabee opposes the legalization of marijuana for any purpose, including medical use. However, he has expressed support for allowing states to develop their own marijuana policies free of federal interference, and he said he is “willing to let states operate under the 10th Amendment.”
John Kasich (R): Kasich is “totally opposed” to marijuana legalization, including the use of marijuana for medical purposes. He believes states should “probably” have the right to establish their own marijuana policies and would not challenge state laws regulating marijuana for medical or adult use.
Martin O'malley (D): O’Malley repeatedly spoke out against the use of marijuana for any purpose as Governor of Maryland, including medical marijuana. Despite his personal opposition, he signed bills into law in 2014 that decriminalized possession of small amounts of marijuana and established a workable medical marijuana program in his sate.
George Pataki (R): Pataki is not in favor of legalizing marijuana for any purpose, including medical use. He has said that he supports states’ rights to set their own marijuana policies without interference from the federal government.
Rand Paul (R): Paul has consistently supported states’ rights to establish their own marijuana policies, and he has been a vocal supporter of decriminalizing or reducing criminal penalties for those arrested for marijuana possession. He is a sponsor of the CARERS Act, a bipartisan bill that would allow states to set their own policies regarding the legalization of medical marijuana without interference from the federal government.
Rick Perry (R): Perry opposes the legalization of marijuana, but he has voiced support for reducing penalties for marijuana possession. He has repeatedly expressed support for states’ rights to establish their own marijuana policies.
Marco Rubio (R): Rubio has expressed some support for allowing the use of non-psychoactive forms of medical marijuana, but he is staunchly opposed to the legalization of marijuana for adult use. In April of 2015, he said that he believes federal prohibition laws should be enforced in states that have repealed state prohibition laws.
Bearnie Sanders (D): Sanders has expressed support for allowing states to legalize and regulate marijuana for adult and medical use. He has been critical of the war on drugs. Sanders says he intends to propose legislation that would remove marijuana from the federal drug schedules and ensure states are allowed to regulate it similarly to how they are allowed to regulate alcohol.
Rick Santorum (R): Santorum is opposed to the legalization of marijuana for any purpose, including medical use. He does not believe states have the right to set their own marijuana policies and supports enforcing federal prohibition laws in states that have rejected them.
Donald Trump (R): Trump has said he favors legalizing all drugs, but more recently he has changed his position somewhat to say that he opposes legalizing and regulating marijuana for adult use at the federal level. He supports legal access to medical marijuana, and he believes states should be able to set their own marijuana policies with regard to adult use.
For references to the above position statements and more details on how to contact the list of candidates and give them your opinions on MJ legalizatoin, see this web site:
Marijuana Policy Project | We Change Laws