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.

President Donald Trump is bragging that Japan has given him, as part of a new trade framework, $550 billion to invest in the United States

The deal imposes 15% tariffs on Japanese cars and other goods, one of the more favorable rates. While the start date and other basic elements are still unknown, Treasury Secretary Scott Bessent warned this week that the US would monitor implementation and bump the rate up to 25% if Trump isn’t satisfied.

Japan's government said on Friday that profits from a $550 billion investment package agreed in this week's tariff deal with the U.S. would be split between Japan and the U.S. according to the degree of contributions by each side.

Japan’s chief trade negotiator says part of a US$550 billion investment package with the United States could be used to back Taiwanese chipmakers if they use Japanese parts or are selling to Japanese customers.