Why he's gaining influence: There aren't many senior officials in this administration who share Trump's hardline / protectionist views on trade. Steve Bannon did — but he's gone and not missed by his colleagues. Then there's Peter Navarro — but his colleagues have little respect for him, frequently marginalize him and accuse him of leaking stories to the press. That leaves Lighthizer, whose views cannot be dismissed because he's been a major figure in . trade policy since the Reagan administration. He wins internal arguments with his colleagues by swamping them with his historical knowledge.