Tokyo has elected its first female governor to take charge of the city amid troubled 2020 Olympic Games preparations after a foul-mouthed campaign of misogyny and mudslinging. Yuriko Koike claimed victory after exit polls and early vote counts pointed to a strong lead for the former defence and environment minister. “I will lead Tokyo politics in an unprecedented manner, a Tokyo you have never seen,” she said in a voice slightly hoarse after two weeks of campaigning. The election, which was contested by a record field of 21 candidates in a city home to 13.6 million people, was called after the previous governor, Yoichi Masuzoe, resigned over a financial scandal involving the use of public funds to pay for lavish hotels and spa trips.