President Trump suggested Monday after a call with Russia's Vladimir Putin that ceasefire negotiations between Moscow and Kyiv should take place in the Vatican, hosted by Pope Leo XIV. Why it matters: This would be a high-profile and potentially risky first act of international diplomacy for the American-born pope.

U.S. Vice President JD Vance has extended an invitation to Pope Leo XIV to visit the United States during a meeting at the Vatican. Vance offered Leo a letter from U.S.

Donald Trump wrote that Russian President Vladimir Putin agreed to "immediately start negotiations toward a ceasefire" with Ukrainian President Volodymyr Zelenskyy.