On Saturday, Iranians were going about their morning routine when they suddenly learned they were being bombed. President Donald Trump, with no prior authorization from Congress, joined Israel in what he called “major combat operations” to eliminate “imminent threats from the Iranian regime.” Speaking directly to the people of Iran, he called for regime change. “To the great, proud people of Iran, I say tonight that the hour of your freedom is at hand. Stay sheltered. Don’t leave your home. It’s...