Mark Carney is Canada’s next prime minister — for now

Mark Carney was sworn in as Canada’s 24th prime minister Friday in the middle of a trade war and with an election battle on the way.

To win the next election, the new prime minister must quickly prove he is Canada’s best hope of managing relations with the White House. On Friday, Carney introduced his new Cabinet built to go head-to-head with President Donald Trump’s administration, as Ottawa lawmakers navigate the fallout of the president’s protectionist policies that one way or another will reshape Canada’s economy.

“This new Cabinet is fully aware of our responsibilities to strengthen the foundations of our nation during this crisis,” Carney said in his first press conference as prime minister.

“We need to build an even better Canada,” he added...