Shields and Ponnuru on G-7 trade tensions

Syndicated columnist Mark Shields and Ramesh Ponnuru of The National Review join Judy Woodruff to discuss the week’s news, including tensions between the U.S. and allies at the G7 summit, as well as President Trump’s comments that Russia should be welcomed back, the upcoming North Korea summit between Trump and Kim Jong Un and takeaways from the biggest primary night of the year.