Japanese Prime Minister Sanae Takaichi's blowout election victory gives her an unprecedented shot at shaking Japan out of its long economic funk and taking on a bigger security role deterring Chinese ambitions in Asia. Her agenda includes new investment in strategic industries, temporary tax relief for inflation-weary consumers and fatter defense budgets. For the U.S., Takaichi's triumph ensures Japan is led by a prime minister who is in broad agreement with American goals, especially President Trump's imperative of getting allies to spend more on regional security.