People in Colorado still remember John Hickenlooper’s crack after the state legalized marijuana, a move he opposed: “Don’t break out the Cheetos or Goldfish too quickly.”

But Mr. Hickenlooper, the governor at the time of the 2012 initiative allowing recreational use of cannabis, eventually changed his mind. He acknowledged that fears of increased use by children did not materialize, and he boasted of the tax revenues for social programs that regulated sales delivered.

Entering the Democratic presidential race this month, Mr. Hickenlooper joined a field already jammed with pro-legalization candidates, a reflection of swiftly changing public opinion since Colorado became one of the first of 10 states with legal recreational marijuana.

The issue today is a pillar of progressive politics, but not because of graying hippies who like their Rocky Mountain High. Rather, for many Democrats, legalization has become a litmus test for candidates’ commitment to equal treatment for all races in policing and criminal justice as well as fighting economic inequality.

A Democrat who is not on board with legalization or addressing it in terms of repairing harms brought by prohibition for decades is going to have a tough time convincing any voter they’re serious about racial justice,” said Vincent M. Southerland, executive director of the Center on Race, Inequality and the Law at New York University Law School.

Senator Cory Booker of New Jersey last month introduced the pointedly named Marijuana Justice Act, which would remove the drug from the federal list of controlled substances and expunge past convictions. Supporters note that African-Americans are almost four times more likely to be arrested for marijuana possession than whites, even though rates of use are similar.

“It’s not enough to legalize marijuana at the federal level — we should also help those who have suffered due to its prohibition,” Mr. Booker said in a tweet.

Other 2020 candidates in the Senate quickly signed on as sponsors, including Kirsten Gillibrand, Bernie Sanders, Elizabeth Warren and Kamala Harris. READ MORE: https://www.nytimes.com/2019/03/17/us/politics/marijuana-legalize-democrats.html?action=click&module=Top%20Stories&pgtype=Homepage