Japan's ruling Liberal Democratic Party, headed by Prime Minister Fumio Kishida, secured four of the five Diet seats up for grabs in by-elections on Sunday, boding well for him amid speculation that he might dissolve the lower house in the near future.The LDP won the Yamaguchi Nos. 2 and 4 districts and the Chiba No. 5 district in the House of Representatives as well as the Oita prefectural district in the upper chamber. Its candidate was defeated in the Wakayama No. 1 district in the lower house by a new face backed by an opposition party that has gained momentum recently.The outcome of th…READ FULL ARTICLE