The Trump administration has been debating a military strike against Iran as tensions with the country escalate. Here’s how we got to this point. Guest: Mark Landler, who covers the White House for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily. Background reading: President Trump approved military strikes against Iran in retaliation for downing an American drone, but abruptly called them off on Thursday night.Mr. Trump has veered between bellicose threats against America’s enemies and promises to get the United States out of foreign wars. He may soon have to choose. The United States and Iran, two longtime adversaries, are once again hurtling toward potential crisis. That course was set a year ago.