Twitter Inc. CEO and co-founder Jack Dorsey found himself in the hot seat two weeks ago, when with little explanation the platform he leads began blocking its millions of users from sharing links to a pair of New York Post stories about Joe Biden’s son, Hunter Biden. Within hours, lawmakers said they would subpoena Mr. Dorsey to explain his decision.
But Mr. Dorsey wasn’t involved in the initial discussions about the move, according to people familiar with the matter. After a public outcry, he posted on Twitter that blocking…