Following Donald Trump’s unusual mid-Democratic National Convention press conference Wednesday, two schools of thought quickly formed among political observers. Liberals and conservative Trump critics saw his comments, particularly his call for Russia to hack and release Hillary Clinton’s personal emails, as disastrous and disqualifying. Some argued that the Republican nominee felt the need to act out because the media was so focused on the Democrats. “Trump’s statement is impossible to defend on the merits,” wrote Dara Lind of Vox. “But it’s actually really easy to understand why he made it: Donald Trump hasn’t been in the news yet all week.”...