Cardin: Trump’s warning for North Korea isn’t a game plan

The August recess hasn't stopped members of Congress from weighing in on President Trump's latest warnings to North Korea. Judy Woodruff speaks with Sen. Ben Cardin, D-Md., about the president’s fiery comments and whether the administration has a well-thought-out strategy, plus how the U.S. should approach diplomacy while turning up the pressure on the nation.