Donald Trump in the Oval Office. A master of the diplomatic deal would realise now is not the moment to withdraw, but to step up pressure on Russia’s leader to come to terms © Chip Somodevilla/ Vladim ...

By Patricia Zengerle, Daphne Psaledakis and Simon Lewis WASHINGTON (Reuters) -U.S. Secretary of State Marco Rubio on Tuesday insisted that the Trump administration was not withdrawing from the world, ...