US trade representative Jamieson Greer has a level-headed reputation but commerce secretary Howard Lutnick and White House adviser Peter Navarro also have key roles

Having reportedly read Victor Hugo’s Les Misérables, in French, during a military tour of duty in Iraq, Jamieson Greer considered himself an unlikely target for accusations of francophobia.

But Donald Trump’s US trade representative, hitherto one of the president’s less high-profile cabinet members, found himself in that uncomfortable position amid the acrimonious collapse of bilateral trade talks with Canada that now threatens to degenerate into an all-out trade war between the two close trading partners whose economies are tightly intertwined.

President denies visit was to gain support for Iran sanctions or due to fears that Putin plans to ‘test Nato resolve’

Donald Trump has downplayed a visit to Moscow by the CIA director, John Ratcliffe, as “semi-routine” after he turned up in the Russian capital unannounced, triggering a wave of speculation about the reasons for his trip.

Ratcliffe was reported to have flown to Moscow on a government transport plane on Tuesday in a rare visit after taking off from the Andrews air force base in Maryland.