Secretary of State Marco Rubio is bracing for a “frank” conversation with Pope Leo XIV when Rubio heads to Rome later this week after friction between the Bishop of Rome and President Trump over immigration and the US war with Iran, the American ambassador to the Holy See said Tuesday. Rubio, a practicing Catholic, will visit Italy and Vatican City Wednesday through Friday to discuss the Middle East and Western Hemisphere while seeking to smooth over recent tensions. “Nations have disagreements, and I think one of the ways that you work through those is … through fraternity and ​authentic dialogue,” Ambassador Brian Burch told reporters, according to Reuters . “I think the secretary is coming here in that spirit,” he added. “To have a frank conversation about US policy, to engage in dialogue.” Burch also rejected the notion that “somehow there’s some deep rift” between Washington and the Vatican. Secretary of State Marco Rubio will try to smooth things over in Italy and the Vatican during his trip.…