With their "Japanese First" slogan, riffing off US President Donald Trump's "America First", they have truly ruffled the feathers of the ruling Liberal Democratic Party (LDP) and its embattled prime minister, Shigeru Ishiba.

U.S. President Donald Trump's successive announcements of deals setting baseline tariffs on the European Union and Japan are prompting questions about whether they're a road map for Canada to follow in trade talks.

Sohei Kamiya's Sanseitō Party won 14 seats in Japan's Upper House elections, appealing to young voters with a "Japanese first" platform focused on culture, birth rates and food security.

When President Donald Trump revealed that his administration had struck a "massive" trade and investment deal with Japan, he described it as "completed"—but it must still pass the Japanese parliament, called the Diet, which is riven with political turmoil.

"The trade deal struck with the U.S. is certainly a relief in that it offers some certainty that U.S. tariffs on Japan-made cars won't rise to punitive levels," said Stefan Angrick, head of Japan and Frontier market economics at Moody's Analytics.

It is the most significant of a clutch of agreements Trump has bagged since unveiling sweeping global levies in April, though like other deals, exact details remained unclear.

TACO or tariffs? An August 1 deadline looms after the European Union became the latest of the top US trading partners to reach a deal with Trump.

President Trump's trade strategy, marked by elevated tariffs, is yielding agreements with nations like the EU, Japan, and Vietnam. The EU accepted 15% US tariffs and committed to significant purchases and investments.