US President Donald Trump struck a cordial tone in his meeting with South Korean President Lee Jae-myung on Monday, despite making remarks just hours earlier that threatened to set an uneasy backdrop for the talks. “It’s an honour to be with President Lee of South Korea. We’ve known each other and gotten along very well,” Trump said at the Oval Office, adding that he felt “very warmly” about the country. Earlier in the day, Trump had posted on his social media platform that there seemed to be a...