Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)

Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)

Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)

Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)

Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)

Japanese Prime Minister Shinzo Abe attends a news conference in Tokyo, Japan, July 22, 2019. Abe said Monday that he will be more flexible for future debates in parliament on revising Japan's Constitution. Abe made the remarks in a news conference a day after pro-amendment forces suffered a setback in failing to achieve a two-thirds majority in Sunday's upper house election. (Xinhua/Du Xiaoyi)