Democratic Whip Katherine Clark of Massachusetts called Israel’s war on Gaza a genocide Thursday night, making her the highest-ranking House Democratic official to do so.

Up to this point, Clark has largely aligned with the rest of Democratic leadership on Israel’s war – expressing concern for civilian harm, advocating for an “end to the hostilities” (and, eventually calling for a ceasefire), and criticizing the Benjamin Netanyahu government. But she has fallen short of advocating for conditioning or ending aid to Israel, or supporting resolutions like Rep. Delia Ramirez’s “Block the Bombs” Act.

AIPAC features Clark on their website alongside the five other top Republicans and Democrats in the House, with the caption: “We stand with those who stand with Israel.”