Donald Trump’s postponement of the announcement of his vice presidential candidate Mike Pence because of the terrorist attack in Nice was in line with the modus operandi of his campaign. He didn’t want to preempt news media coverage of another radical Islamist terrorist attack.

Disarray and disorder work against the party in power, especially if the president and his presidential candidate refuse to identify radical Islamists as the threat facing civilized societies. The rollout of the mild-mannered Pence can wait, until a slow-news Saturday.