At a time when India-US relations were hampered by a trust deficit, two of Washington’s most influential interlocutors, US Secretary of State and National Security Advisor Marco Rubio, who was in Mumbai on his second visit to India in less than five months, and US Ambassador to India Sergio Gor, sat down with India Today Group Editorial Director Raj Chengappa for a candid discussion on the challenges and imperatives shaping the relationship. From the elusive bilateral trade deal and India’s energy security needs to Russian oil purchases, defence and technology cooperation, the H-1B visa crackdown and concerns over Washington’s growing…