The Memo: Trump declares Israel-Iran ceasefire after day of head-spinning drama

Just two weeks ago, it would have been inconceivable that a day on which Iran fired missiles at a U.S. base would also be seen as a day of de-escalation.

But that was the bizarre nature of Monday, when Iran targeted the largest U.S. military installation in the Middle East but did so in a way that seemed purely symbolic. By day’s end, President Trump had announced a ceasefire between the Islamic Republic and Israel.

There are a host of questions still to be answered. The most...