Pakistan's three-time Prime Minister Nawaz Sharif kick-started his party's campaign for next year's election on Saturday after arriving home from four years of self-imposed exile in London, promising to tackle record inflation. "I want to serve this nation," said the 73-year-old veteran politician in his address to thousands of his supporters at his eastern hometown of Lahore. "My only desire is to see this nation prosper," he said after he compared today's essential goods prices with his last tenure before he was ousted in 2017.