The common refrain floating around Washington argues that Russian operatives hoping to target American voters with fake news about Hilary Clinton would need someone on the inside—like, say, a Trump campaign staffer—to tell them which voters to target.

Representative Adam Schiff raised the prospect in a widely-shared McClatchy article published Wednesday, which reported that the team led by Robert Mueller, the Department of Justice-appointed special counsel, is investigating ties between the Trump digital operation and Russia.

It’s a question worth asking, certainly.

But the answer may be far simpler—and less fishy—than Warner, Schiff, or the many Americans seeking a smoking gun in the Russian meddling investigation might expect.

It also may be even more worrisome.

Platforms like Facebook and Twitter make it easy for anyone to buy and target ads to narrow audiences.

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