As the Trump presidency approaches its 100th day, NPR News is launching the initiative, “A Nation Engaged,” to help foster conversation on the topic of “Power & the Presidency.”

Today on AirTalk, we’ll look at the use of executive orders, particularly in the Trump and Obama administrations.

Guests:

Julian Zelizer, presidential historian and a professor of history and public affairs at Princeton University; he is the author of many books, including, “The Fierce Urgency of Now: Lyndon Johnson, Congress, and the Battle for the Great Society” (Penguin, 2015)

Tevi Troy, president of the American Health Policy Institute and author of the book, "Shall We Wake the President? Two Centuries of Disaster Management from the Oval Office" (Lyons Press, 2016)