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In the Venn diagram of Donald Trump’s least favorite groups, there is perhaps nobody closer to the middle than Rep. Ilhan Omar. The lawmaker from Minnesota is a progressive, an outspoken critic of Trump, a woman, a Muslim, and an immigrant. Specifically, she’s Somali American, part of a group Trump has targeted virulently. (Among many examples, Trump last week posted on Truth Social that Minnesota should “fight back” against its Somali population.) Trump has repeatedly attacked Omar and suggested she belongs in neither Congress nor the country.

That made it all the more alarming when—three weeks before Election Day—federal agents entered the sitting lawmaker’s home as part of what the Justice Department called an “ongoing investigation.” Is this yet another example, even an escalation, of Trump’s efforts to use federal law enforcement to harass his political opponents? Or is there some legitimacy to this investigation? Let’s get into what we know and what we don’t.

What were federal agents looking for in Omar’s home?

Early Monday morning, agents from Homeland Security Investigations, part of the Immigration and Customs Enforcement agency, surrounded Omar’s home and entered the premises, then left with boxes and other items. The Justice Department said only that the search was related to an ongoing investigation and that the department had obtained a warrant from a federal judge. But ICE’s involvement suggests the issue centers on potential violations of immigration law, as do past statements from multiple members of the administration, who’ve........

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