The first U.S. president to back a Japanese leader in an election signals a dramatic realignment in Pacific politics
On Thursday, President Donald Trump did something no American president has ever done: publicly endorse a Japanese political leader before an election. In a Truth Social post, Trump called Prime Minister Sanae Takaichi "strong, powerful, and wise," announcing plans to host her at the White House on March 19.
The endorsement caps an extraordinary political trajectory for Japan's first female prime minister, who faces voters on February 8 in a snap election that polls suggest she will win decisively—potentially with a two-thirds supermajority in the House of Representatives.
A Diplomatic Revolution
The Trump endorsement underscores how fundamentally Japanese-American relations have shifted under Takaichi's leadership. When she took office in October 2024, Japan was still navigating the cautious diplomacy of her predecessors. Within months, Takaichi had:
- Visited the U.S. naval base in Yokosuka with Trump, days after taking office
- Declared that a Chinese attack on Taiwan could trigger Japanese military intervention—the most explicit statement any sitting Japanese leader has made
- Secured a $550 billion investment deal with the U.S. in exchange for a 15% tariff rate
- Scheduled a White House visit for March 19, cementing her status as a Trump favorite among world leaders
"In my visit to Japan I, and all of my Representatives, were extremely impressed with her," Trump wrote. While Trump has endorsed foreign leaders before—including Israel's Benjamin Netanyahu and Italy's Giorgia Meloni—backing a Japanese leader is unprecedented territory, breaking a long-standing norm of American non-interference in allied nations' elections.
"Sanamania" and the Youth Vote
Perhaps more surprising than Trump's endorsement is Takaichi's domestic popularity, particularly among young voters. Polls show her approval rating among Japanese youth exceeds 80%—an extraordinary figure in a country where youth political engagement has historically been minimal.
The phenomenon has been dubbed "Sanamania." Items associated with Takaichi have gone viral: the pink ballpoint pen she uses to take notes in parliament, her $900 black leather handbag (now sold out months in advance), even her pledge to "work, work, work, work and work," named Japan's catchphrase of the year.
Her social media savvy has helped. With more than 2.6 million followers on X, Takaichi has nearly five times the following of her predecessor, Shigeru Ishiba. She has also charmed regional leaders, famously playing drums to K-pop songs with South Korean President Lee Jae Myung at a summit in January.
"Undoubtedly, Takaichi brings a new air as the first Japanese female prime minister in history," said Yuichi Hosoya, a professor of international politics at Keio University. "That radically changed the atmosphere in the Japanese political space."
The Rightward Shift
Behind the personality cult lies a substantive political transformation. Takaichi is a protégé of the late Prime Minister Shinzo Abe, and shares his ambition to revise Japan's post-war constitution—particularly Article 9, which renounces the right to wage war.
Her agenda includes:
- Constitutional revision to normalize Japan's military capabilities
- Increased defense spending amid threats from China and North Korea
- Aggressive fiscal policy with government spending to counter economic stagnation
- Closer alignment with right-wing parties, including the populist Sanseito Party
Last year, the Liberal Democratic Party split with Komeito, their coalition partner of 26 years. Takaichi forged a new alliance with the conservative Japan Innovation Party, a move political scientist Koichi Nakano compares to "the Trumpian takeover of the Republican Party."
"Takaichi is trying to leave a personal mark on the LDP, and to become a new rallying center for the right-wing forces," Nakano told NPR.
The China Factor
Takaichi's rise has come at a cost: a dramatic deterioration in Japan-China relations. Her November statement that Japan could respond militarily to a Chinese attack on Taiwan triggered immediate retaliation from Beijing:
- Seafood import ban reimposed
- Rare earth mineral export restrictions implemented
- Tourism warnings issued to Chinese nationals considering Japan travel
- Cultural exchange programs cancelled
Rather than backing down, Takaichi has doubled down. "She crossed their red line, and that has really redounded to her advantage," said Jeff Kingston, professor of Asian studies at Temple University. "Japanese people don't want war with China, but I think they admire her for standing up to the regional bully."
The standoff reflects growing Japanese anxiety about regional security. With the U.S. appearing to pivot attention toward the Western Hemisphere and avoid antagonizing China ahead of Xi Jinping's planned visit to Washington, Japan sees a need to build independent defense capabilities.
"Takaichi is interested in nurturing a very strong U.S. alliance, but also building Japan's own defense capabilities as a hedge against the perception that America is no longer a reliable ally," Kingston noted.
What Victory Means
If polls are accurate, Takaichi's ruling coalition could win more than 300 of 465 seats in the House of Representatives. The LDP might even secure a majority without its coalition partner—a result that would give Takaichi enormous political capital to pursue her agenda.
For voters like 50-year-old Koichi Sato, who attended a Takaichi rally with his family, security concerns drive support. "In 10 or 20 years, our children will still have a future ahead of them, so I want Japan to be a place where they can live and feel safe."
But challenges loom. Markets have been volatile over fears that Takaichi's spending plans could deepen national debt. The yen has weakened, exacerbating a cost-of-living crisis. And despite the investment deal, Trump's tariff threats remain unpredictable—he recently demanded South Korea accelerate its promised investment or face higher duties.
"She says very aggressive things, but we haven't really seen anything that she has accomplished yet," cautioned Hiromi Murakami, professor of international affairs at Temple University.
A New Era in Pacific Politics
Regardless of what happens at the polls, Takaichi has already reshaped the geopolitical landscape. The Trump endorsement—unprecedented as it is—reflects a new reality: the U.S. and Japan are moving toward an openly aligned conservative partnership, united by shared concerns about China and a willingness to challenge post-war diplomatic norms.
For Kyodo News politics editor Masahiko Hisae, the shift reflects global trends. "Anxiety about perceived security threats, including from China, North Korea and Russia, and widening income disparities are moving Japan's politics in the same direction as other countries."
Whether Takaichi's popularity can sustain her ambitious agenda remains to be seen. But as Japanese voters head to the polls on a freezing February Sunday, they are voting not just on a prime minister—but on Japan's future role in an increasingly polarized world.
The polls are open. Results are expected by Sunday evening, Japan time.
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