Rubio expects 'frank' meeting with pope as Trump takes fresh potshots at Leo

By Joshua McElwee VATICAN CITY, May 5 (Reuters) - U.S. Secretary of State Marco Rubio expects a "frank" meeting with Pope Leo during a visit to the Vatican this week, the U.S. ambassador said on Tuesday, after President Donald Trump took a fresh pot-shot at the pope for criticising the U.S. war in I