Nicki Minaj has never been one to hold her tongue, whether she's talking about her work as a musician or national politics. And in a recent interview with Billboard, the artist strongly condemned the U.S. government's War on Drugs.

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"What it has become is not a war on drugs. It has become slavery. Or something crazier," Minaj said. "When I see how many people are in jail, I feel like, 'Wait a minute. Our government is aware of these statistics and thinks it’s OK?' The sentences are inhumane."

She makes an important point about the country's mass incarceration problem. There are more than 2 million people behind bars in America; and while the country only represents five percent of the world's population, it's responsible for approximately 22 percent of the world's prison population.

And while the comparison to slavery has stirred controversy, Minaj is also right that the criminal justice system is racially prejudiced, disproportionately affecting Black people. Black people are sent to jail for drug offenses at 10 times the rate of white people, despite the fact that drug use rates for white people are five times higher.

Asked about President Barack Obama's legacy, Minaj said that she felt personally moved by his decision to visit a federal prison and pardon 46 non-violent, drug offenders in July.

"I was blown away, watching the footage of him speaking to the prisoners," she told Billboard. "They never felt like anyone in the White House cared about them. I loved that he made them people again. Because we all make mistakes."

The president has made a notable push for criminal justice reform over the past year, and he's voiced support for reducing or removing minimum sentences for non-violent drug offenders.

As far as the 2016 presidential election is concerned, Minaj has not committed to any particular candidate yet (though she admits that she's partial to Democratic front-runner Hillary Clinton), and she called Republican candidate Donald Trump's campaign the "ultimate reality show."

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"There are points he has made that may not have been so horrible if his approach wasn't so childish," she said. "But in terms of entertainment—I think he’s hilarious." (It is worth noting, however, that this interview took place before Trump announced his proposal to ban Muslim immigration to the U.S.)

For more on the problem of mass incarceration in America, check out this video narrated by Sen. Cory Booker: