To hear Speaker Nancy Pelosi tell it, Rep. Ilhan Omar is a naïf. Nothing the Minnesota freshman has said was “intended in an anti-Semitic way,” Mrs. Pelosi explained last week. She merely “has a different experience in the use of words” and “doesn’t understand that some of them are fraught with meaning.” Yet Ms. Omar has been consistent not only in attacking the pro-Israel lobby, but in purveying a conspiratorial view of the world. The evidence-free accusation that illegitimate moneyed or foreign interests are corrupting her opponents and dictating U.S. policy is her modus operandi.

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