On President Donald Trump’s call list Saturday was Ukraine President Poroshenko. The conversation comes after a week of some of the worst fighting in the last two year between Ukrainian and pro-Russia separatist fighters killed 30 people. Alison Stewart is…

Barely two weeks into his term, President Donald Trump has shaken up global affairs through unilateral moves, blunt talk and tweets. What does President Trump’s aggressive approach mean for relations with other world leaders? Judy Woodruff speaks with two former…