The sweeping victory of Japan's ruling party in Sunday's upper house election gives Prime Minister Fumio Kishida a free hand to tackle long-term issues, but controversial plans for revising the Constitution may take a back seat as he faces rising prices and the fallout from the assassination of influential predecessor Shinzo Abe.The death of Abe, shot just two days ahead of voting while on the campaign trail, raised the prospect of uncertainties in the internal politics of Kishida's Liberal Democratic Party, as Abe, the hawkish former party chief who was Japan's longest-serving prime minist…READ FULL ARTICLE