Rapper Macklemore went after President Biden in a new song on the Israel-Hamas war in Gaza and recent pro-Palestinian student protests.

“The blood is on your hands, Biden, we can see it all,” the rapper says in a video featuring the song, titled “Hind’s Hall,” seemingly in reference to what pro-Palestinian protesters renamed a building on Columbia University’s campus when they took it over last week. The video was posted Monday to the social platform X.

Macklemore was previously a speaker at a pro-Palestinian protest in the fall of last year in Washington, D.C., shortly after the current conflict between Israel and Palestinian militant group Hamas began.