Japanese Prime Minister Shigeru Ishiba’s conservative ruling party braced for a blow to its comfortable majority in the lower house of parliament in Sunday’s elections as a result of public rage over financial scandals and discontent over a stagnant economy.

According to exit polls by the NHK public television, Ishiba’s Liberal Democratic Party is certain to lose the majority in the 465-seat house, the more powerful of Japan’s two-chamber parliament. It’s still unclear if his ruling…