Prime Minister Shinzo Abe's Liberal Democratic Party suffered a historic defeat in an election in the Japanese capital on Sunday, signaling trouble ahead for the premier, who has suffered from slumping support because of a favoritism scandal.
On the surface, the Tokyo Metropolitan assembly election was a referendum on Governor Yuriko Koike's year in office, but the dismal showing for Abe's party is also a stinging rebuke of his 4-1/2-year-old administration.
Koike's Tokyo Citizens First party and its allies were on track for 73 to 85 seats in the 127-seat assembly, according to exit polls by NHK public TV.
Later vote counts showed the LDP was certain to post its worst-ever result, winning at most 37 seats compared with 57 before the election, NHK said, while Koike's party and allies were assured a majority.
"We must recognize this as an historic defeat," former defense minister Shigeru Ishiba was quoted by NHK as saying.
Past Tokyo elections have been bellwethers for national trends. A 2009 Tokyo poll in which the LDP won just 38 seats was followed by its defeat in a general election that year, although this time no lower house poll need be held until late 2018.
Koike, a media-savvy ex-defense minister and former LDP member, took office a year ago as the first female governor in the capital, defying the local LDP chapter to run and promising to reform governance of a megacity with a population of 13.7 million and an economy bigger than Holland's.
Among her allies is the Komeito party, the LDP's national coalition partner.
The strong showing by Koike's party will fuel speculation that she will make a bid for the nation's top job, though that may not be until after the 2020 Tokyo Olympics.
It could also widen cracks between the LDP and the Komeito while damaging prospects for the opposition Democratic Party.
Abe's rivals in his party could be encouraged by the LDP's dismal performance to challenge him in a leadership race in September 2018, victory in which would set Abe on course to become Japan's longest-serving leader and bolster his hopes of revising the post-war, pacifist constitution.
The LDP's thrashing could also make it harder for Abe to pursue his cherished goal of revising the US-drafted constitution's pacifist Article 9 by 2020, a politically divisive agenda, said Sophia University professor Koichi Nakano.
Abe's troubles center on concern he may have intervened to help Kake Gakuen (Kake Educational Institution), whose director, Kotaro Kake, is a friend, win approval for a veterinary school in a special economic zone.
The government has not granted such an approval in decades due to a perceived glut of veterinarians. Abe and his aides have denied doing Kake any favors.
Abe is expected to reshuffle his cabinet in coming months in an effort to repair his damaged ratings, a step often taken by beleaguered leaders but one that can backfired if novice ministers become embroiled in scandals or commit gaffes.