Final answer:
A speech at a medical marijuana rally aims to convince attendees to support legislative reform, drawing on health benefits, changing public opinion, and the evolving government stance.
Step-by-step explanation:
A speech arguing to vote for medical marijuana use, particularly at a rally supporting a medical marijuana initiative, typically aims to persuade the audience of the potential health benefits and to push for legislative changes regarding its use. For instance, the usage of marijuana for chemotherapy patients in stimulating appetite and preventing weight loss is a compelling example that advocates might use. Moreover, speakers at such rallies often cite the changing government's stance on marijuana, such as in states like Colorado, where voters approved recreational use, highlighting a trend toward legalization for various purposes.
The legal landscape for marijuana use has changed significantly, with over half of the United States now having laws allowing medical marijuana. Various references in history, including the Supreme Court ruling in Gonzales v. Raich and the statement by Attorney General Eric Holder, indicate a shifting perspective at the federal level. Still, the FDA has not approved the marijuana plant as medicine, leading advocates to call for more research and legal reform.