Several potential rival presidential candidates are teaming up on legislation to end the federal war on marijuana.

On Thursday, U.S. Sen. Bernie Sanders (I-VT) is signing on as a cosponsor of the Marijuana Justice Act, introduced last year by Sen. Cory Booker (D-NJ).

Many political observers expect that Booker and Sanders will compete for the Democratic presidential nomination in 2020. Sen. Kirsten Gillibrand (D-NY), another rumored contender, is also a cosponsor of the bill.

Although the three senators may be just months away from the start of a hard-fought political nominating contest, they are linking arms in support of the most far-reaching cannabis reform bill ever to have been filed in Congress.

“Leaders in the Democratic Party are increasingly recognizing that leading the charge on legalization is not only good policy, but good politics,” Justin Strekal, political director of NORML, said in an interview. “The constituencies which the party claims to stand for are the ones who have most felt the weight of prohibition and the lifelong consequences of prohibition.”

The Marijuana Justice Act, if passed, would not only remove marijuana from the Controlled Substances Act so that states could legalize without federal interference, but would also withhold funding from states that maintain criminalization and continue racially disproportionate arrest and incarceration rates for cannabis. [Read more at Forbes]