Kenneth Juster. Credit: WikiVisuallyWashington: US President Donald Trump is expected to nominate a top economic aide, Kenneth Juster, as the next US ambassador to India, two senior White House officials said on Friday.Juster is a top deputy on the White House National Economic Council. He is a familiar face among Indian officials, having chaired the US-India High Technology Cooperation Group when Republican George W Bush was president.Trump is to play host to Indian Prime Minister Narendra Modi at the White House on Monday.