Donald Trump

Donald Trump has become increasingly frustrated with his administration's inability to deliver the nationalist trade agenda — and bold tariffs — he promised during his campaign. Now some US companies may be about to rescue him from that frustration.

Trade cases involving Chinese solar cells, South Korean washing machines and Canadian jets are expected to land on the president's desk in the coming weeks. Each has its own complexities, and each faces opposition both at home and abroad. Yet they may prove hard to resist for a president eager to wield his protectionist pen.