US President Donald Trump said on Friday he would nominate Sergio Gor, one of his closest aides, to be the country’s next ambassador to India, where he will oversee frosty relations that have worsened with the planned doubling of US tariffs on India next week.Gor, who is currently the director of the White House Presidential Personnel Office, would also serve as a special envoy for South and Central Asian affairs.Trump said on social media that Gor would remain in his current position until he...