Trump views the Supreme Court as an ally, sowing doubt about its independence among his critics

The morning after the Supreme Court reviewed his administration’s most important case of the term, President Trump informed the justices he might have another task for them.

“I DID NOTHING WRONG,” Trump tweeted Wednesday. “If the partisan Dems ever tried to Impeach, I would first head to the U.S. Supreme Court.”

Constitutional experts immediately derided Trump’s faulty legal analysis. But the more striking message, the day after the court considered the administration’s plan to put a citizenship question on the 2020 Census, seemed to be Trump’s consistent theme that he...