New Delhi, July 17 -- WASHINGTON - The International Criminal Court holds arrest warrants for Benjamin Netanyahu. Marco Rubio wants the court dismantled. And this week, Ilhan Omar walked into the House of Representatives and introduced a resolution calling for the United States to join it.

The collision of those three facts encapsulates the central argument in American politics over accountability for Gaza. The court that charged Israel's prime minister with war crimes and crimes against humanity is, in Omar's view, the most credible mechanism for international justice that exists. Rubio has called it a weapon aimed at American sovereignty and vowed to tear it down "brick by brick."

Omar's measure calls on Congress to ratify the Rome St...