Coming up on today's show:
Vermont Senator Bernie Sanders won the Democratic caucuses in Washington, Alaska, and Hawaii over the weekend. Farai Chideya, a senior writer at FiveThirtyEight, explains what these wins could mean for the Sanders camp going forward.
BBC Correspondent Kim Ghattas has spent much of her career covering the Middle East. Now she's covering the Hillary Clinton campaign, and provides an outsider perspective on the 2016 election. Ghattas is author of "The Secretary: A Journey with Hillary Clinton from Beirut to the Heart of American Power."
Over the weekend, a suicide bomber set off an explosion at a park in the eastern Pakistani city of Lahore. Mia Bloom, a professor of communication at Georgia University and author of "Dying to Kill: The Allure of Suicide Terror," explains what we know about the attack.
Though the city of Palmyra has been under ISIS control for nearly a year, Syrian troops were able to successfully capture this strategic location over the weekend.