Pressure persists after Trump's visit

Closing trade deal only possible after Japan's upper house election in July

Japan rolled out the red carpet for US President Donald Trump this week, winning Tokyo a brief respite in its trade battle with Washington, but Japanese Prime Minister Shinzo Abe faces pressure to deliver concessions after a summer election.

Trump on Tuesday wound up a four-day state visit featuring golf, sumo, a state dinner with newly enthroned Emperor Naruhito and inspections of US and Japanese warships meant to showcase the alliance, but it was all shadowed by a feud over the two-way trade gap. Trump and his wife Melania boarded Air Force One at Tokyo's Haneda airport and were headed back to Washington, via a refueling stop in Alaska.