Benjamin Netanyahu, Prime Minister of Israel

Freshman Democratic Rep. Ilhan Omar of Minnesota apologized for tweets she put out that many considered anti-Semitic. “Anti-Semitism is real and I am grateful for Jewish allies and colleagues who are educating me on the painful history of anti-Semitic tropes,” Omar said in a statement.

The controversy over Omar’s tweets — which suggested GOP support of Israel is fueled by donations from a pro-Israel lobbying group — highlight the growing divide in the Democratic Party over Israel. Many of the Dems’ 2020 presidential contenders, taking their cues from the progressive base, seem willing to break with the pro-Israel foreign policy stance that’s guided the party for a generation. But the tweets by Omar, one of the first Muslim women in Congress, expose the political risks of going down that road.