The CARERS act was introduced earlier this month would reclassify pot as a Schedule II or III substance, give states freedom to pass their own marijuana laws without federal intereference, allow dispensaries to access banking systems, and help scientists to research the drug on a higher level.

Several senators have got behind the bill since it’s introduction, a good sign. Senator Dean Heller (R-Nev) said he supports the bill because it also gives doctors the option to give out medical marijuana to veterans if the state allowed it.

Barbara Boxer (D-Cal) also showed support of the legislation, saying she’s a strong supporter of the medical marijuana system and that she believes that doctors, patients and caregivers should be able to follow the law in their own state without having any concerns of federal prosecution.

Not everyone is in favor of legalizing it though – Dianne Feinstein (D-Cal) is worried about the potency of various strains of marijuana, saying she would like to see more research go into the derivatives of the drug that provides medical benefits as well as the psychoactive effects.

Even though the bill is gaining plenty of momentum, it is still has an uphill struggle. Chuck Grassley, who is chairman of the Senate Judiciary Committee, opposes the measure and says he doesn’t have any immediate intentions to schedule a hearing for it. He says that legal weed isn’t a priority, and that Obama’s recent comment that Congress might reclassify the drug if it became legal in more states won’t affect his decision.