Michigan Democratic Senate candidate Abdul El-Sayed brandished an unremorseful embrace of left-wing commentator Hasan Piker as the two traveled to state college campuses Tuesday to rally support from younger voters.

Piker, who once said that “America deserved 9/11” and called Orthodox Jews “inbred,” is roiling Democrats as he uses his large following online, built from his popularity as a Twitch streamer, to become a surrogate for progressive candidates like El-Sayed.