Neither the White House nor Trudeau’s office responded to requests for comment. Presidents generally place calls on one of several secure phone lines, including those in the White House Situation Room, the Oval Office or the presidential limousine. The White House did not respond to questions on whether the president is keeping records of any less-formal calls with world leaders. Trump’s White House is already facing scrutiny for apparent efforts to work outside usual diplomatic channels. The White House has said such back channel communications are useful and discreet.

Source: National Post May 31, 2017 14:03 UTC