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The House impeached President Trump for inappropriately using the powers of the United States government for his own political benefit.

Last week, on the cusp of the Senate trial, The Times’s Adam Goldman broke the news of another way that Trump may be abusing his power: The Justice Department is investigating years-old leaks to journalists, apparently focused on James Comey, the former F.B.I. director and harsh critic of Trump.

“We keep seeing examples of the Department of Justice weaponized against Trump’s political antagonists,” Jesse Eisinger of ProPublica wrote, in response to the news. “It’s among the most dangerous and lasting aspects of his presidency.”