(New York Times) Representative Justin Amash, an iconoclastic Republican of Michigan who has considered a run against President Trump in 2020, became the first member of his party serving in Congress to publicly suggest that the president’s conduct had reached the “threshold of impeachment.”

Mr. Amash, 39, used Mr. Trump’s favorite medium — Twitter — to join a groundswell of Democrats who have concluded that the president’s behavior, including instances of potential obstruction of justice laid out in the report by the special counsel, Robert S. Mueller III, meets the constitutional threshold of high crimes and misdemeanors.

“President Trump has engaged in impeachable conduct,” Mr. Amash wrote in a series of messages after reading the redacted version of the 448-page report.

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