Conservative leader Keiko Fujimori was sworn in as Peru's president on Tuesday after winning the June presidential runoff by a margin of fewer than 50,000 votes, a victory that confirmed a regional shift in South America toward the conservative wing. With the ceremony, Fujimori, a four-time presidential candidate and leader of Peru's largest political party, officially takes office as the country's ninth president in a decade. The 51-year-old is hoping to stabilize Peru's turbulent politics, reduce crime and boost economic growth. ... Fujimori's Popular Force party and its main ally, Popular Renovation, will hold half the senate seats once the...