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Kanye West, Saturday Night Live

Dana Edelson/NBC

Kanye West is at it again…

The "Facts" rapper took to Twitter earlier today to vent his frustrations over a new subject matter close to his heart: public education.

Yeezy's latest social media rant comes on the heels of reports that he had a meltdown backstage shortly before performing on Saturday Night Live this past weekend.

And while the Grammy winner didn't exactly address the rumors, a source tells E! News that West was "rightfully upset" after a last-minute change to his set.

"Someone in the crew dismantled his stage without talking to him," our insider reports. "Kanye had an exact look planned for his set…The producers were apologetic to him. There was a miscommunication, things smoothed over and he performed as planned."

Meanwhile, what's another day without a lengthy message from Kim Kardashian's husband on Twitter, right?

West started out by venting about how "we have to lower the price of textbooks" and "education puts Americans into debt before they even get a chance to get started."

He continued, "I have a friend who works really hard and makes $370 dollars a day. Her son just got in a really good school and his textbooks are like $400 dollars each. I mean, his mom has to work 2 days just to afford 1 book for her son. She's given everything she has to make sure her son has a better future…I'd rather teachers got paid more and books cost less."

Looks like he's already ramping up his campaign for 2020.

(E! and NBC are both part of the NBCUniversal family.)