The Bank of Japan's effort to normalize policy is becoming more complicated as Japanese government bond yields keep climbing and political pressure builds to shield the market from higher borrowing costs. Concern over Prime Minister Sanae Takaichi's expansive fiscal agenda had already pushed the 10-year JGB yield to 2.805% on Monday, and it rose to around 2.84% on Wednesday, a one-week high, as firmer oil prices, persistent yen weakness and growing expectations of a September BOJ rate hike sharpened inflation concerns. The debate matters because renewed BOJ bond buying would clash with the bank's effort to unwind years of extraordinary easing and could revive fears of fiscal dominance, when monetary policy is seen as serving government financing needs. Domestic media said Takaichi urged BOJ Governor Kazuo Ueda in May to buy more bonds when needed to cap long-term rates, while allies including Economy Minister Minoru Kiuchi have voiced concern over the bank's balance-sheet reduction. The BOJ has pushed back by arguing in a research paper released last week that inflation, rather than slower bond purchases, is the main driver of higher yields, while June meeting minutes signalled commitment to normalization even as policymakers weigh stronger action against mounting price pressures and higher import costs. It has nevertheless left the door open to emergency bond-buying operations if yield moves become disorderly and threaten financial stability.