President Trump’s promise to repeal Obamacare could come down to one issue: abortion. And how the families of people killed by undocumented immigrants have become an emotional cornerstone of another signature issue for the Trump administration. Guests: Sheryl Gay Stolberg, a White House correspondent for The Times; Vivian Yee, who covers immigration for The Times; and Steve Ronnebeck, whose 21-year-old son, Grant, was shot and killed by an illegal immigrant. Caitlin Dickerson is our host; Michael Barbaro is on vacation. For more information on today’s episode, visit http://nyti.ms/2u80Xxf.