U.S. Sen. Bernie Sanders (I-VT) is asking his supporters to pressure Congress to legalize marijuana and end the broader “war on drugs.”

In an email sent to the former (and possibly future) presidential candidate’s campaign e-mail list on Wednesday night, the senator wrote that the federal government’s anti-cannabis approach is “an issue of grave consequence.”

Citing racial disparities in enforcement, Sanders said that “marijuana prohibition is part of a larger failed war on drugs that has led to the great national crisis of mass incarceration.”

He’s asking supporters to sign an online petition calling on federal lawmakers to treat drugs as a health issue instead of a crime and “invest in programs that focus on treatment and prevention.”

Calling the rescheduling of cannabis a “a first step,” he said that marijuana’s current classification in a more restrictive category than cocaine “doesn’t make any sense.”

“Let’s have states decide the issue of marijuana for themselves like they do with alcohol,” he wrote. “More and more states are moving in the direction of decriminalization. Let them make those decisions without federal interference.”

In late 2015, amidst his bid for the Democratic presidential nomination, Sanders filed the first-ever marijuana descheduling bill to be introduced in the U.S. Senate.

The legislation ended up going nowhere after earning zero co-sponsors.

Sanders hasn’t introduced any new marijuana bills during the current 115th Congress, which began more than a year ago, but he has signed on as a co-sponsor of cannabis banking legislation filed by Sen. Jeff Merkley (D-OR).

The Vermont senator hasn’t yet co-sponsored a bill Sen. Cory Booker (D-NJ) filed that would remove marijuana from the Controlled Substances Act, similar to Sanders’s 114th Congress proposal. The Booker legislation goes even further by withholding funding from states with racially discriminatory cannabis enforcement.

In addition to Sanders, other potential 2020 Democratic presidential candidates Sens. Elizabeth Warren (D-MA) and Kamala Harris (D-CA) are signed on to the banking bill. Warren and potential presidential contender Sen. Kirsten Gillibrand (D-NY) are also co-sponsors of a separate comprehensive medical cannabis bill that Booker, himself a rumored 2020 candidate, introduced.

Read the full text of Sanders’s marijuana e-mail below:

I am writing you about an issue of grave consequence that affects the lives of millions of Americans and greatly impacts our democracy – namely the continued federal prohibition on marijuana and the need for reform of our criminal justice system.

As you know, a number of states (including my state of Vermont) have decriminalized or legalized the possession, use and sale of marijuana in recent years. Under the Obama Administration, the Justice Department took no action against these states or the people in those states. However, the Trump Administration has taken a very different stance with Attorney General Jeff Sessions threatening to prosecute. That would be a huge mistake and move us in exactly the wrong direction.

Here’s why:

Millions of Americans have had their lives impacted by the federal prohibition on marijuana – arrests, convictions and even jail time. Even when people don’t go to jail, the criminal record they receive makes it harder for them to find a job, get housing or go to college. Is this a widespread problem? It sure is. In 2016 alone, over half a million people were arrested for marijuana possession.

These harmful impacts are felt far more acutely in communities of color and poor communities because enforcement of marijuana laws is much stricter there than in more affluent, white communities. Incredibly, African Americans are four times more likely to be arrested for marijuana even though marijuana usage rates are basically the same across racial lines.

Of course, marijuana prohibition is part of a larger failed war on drugs that has led to the great national crisis of mass incarceration. Some 1.5 million people were arrested for a drug related offense in 2016 – over 80 percent of which were for possession alone. We need to stop criminalizing addiction. We need to stop criminalizing recreational marijuana use.

The criminal justice system is not the answer to drug abuse. Addiction is a health problem and we should start treating it that way. While communities all across the country lack adequate resources for treatment or prevention, we are spending approximately $50 billion a year on the war on drugs. That’s absurd. We need to get our priorities right.

And that starts with making our voices heard:

Sign my petition if you agree it is long past time for the government to end its failed war on drugs and instead invest in programs that focus on treatment and prevention of drug abuse. This is an important issue that impacts almost everyone and we should all make our voices heard.

This so-called war on drugs has led us to have over 2 million people in prison – disproportionately poor and from communities of color. Our incarceration rate is the highest in the world – higher even than authoritarian countries like China, Saudi Arabia, and Russia.

Further, what is not often discussed is how the war on drugs and mass incarceration is impacting the essence of our democracy. People with felony convictions cannot vote in many states. Today, for that reason alone, over 6 million Americans are denied access to the ballot.

Uneven enforcement and the fact that people of color receive longer sentences for the same offenses than white defendants means more felony convictions in those communities. And that means – surprise, surprise – fewer voters.

In other words, the war on drugs is robbing those minority and lower income communities of their political power. In Florida, Kentucky and Tennessee over 20 percent of voting age African Americans are disenfranchised because of felony convictions. It’s not too hard to figure out what’s going on here. The communities most impacted by these policies are systematically stripped of their ability in our democratic system to politically fight back.

Why hasn’t something been done to fix this problem? You know the reason. The sad truth is that some politicians benefit from people not being able to vote. All too often these are the same politicians who are trying to disenfranchise voters in other ways, such as restrictive voter ID laws or extreme gerrymandering.

This has got to change.

We need the highest voter turnout in the world, not the highest incarceration rate. We need to provide treatment for people with substance abuse problems, not lock them up.

As a first step, we need to remove marijuana from Category 1 of the federal Controlled Substances Act where it is currently ranked alongside drugs like heroin. In fact, marijuana is classified more harshly than cocaine. That doesn’t make any sense.

Let’s have states decide the issue of marijuana for themselves like they do with alcohol. More and more states are moving in the direction of decriminalization. Let them make those decisions without federal interference.

Let’s invest in the prevention and treatment of substance abuse.

Let’s reform our criminal laws and take other steps to dismantle mass incarceration. Among other steps forward we need to ban private prisons and create new federal policing standards.

Let’s restore the voting rights of all Americans.

If you share my goal of making these important reforms please sign this petition:

Sign my petition if you agree it is long past time for the government to end its failed war on drugs and instead invest in programs that focus on treatment and prevention of drug abuse. This is an important issue that impacts almost everyone and we should all make our voices heard.

In Solidarity,

Bernie Sanders

Photo courtesy of Phil Roeder.