People celebrate in the streets of Lahore, Pakistan, after Nawaz Sharif, a former prime minister, declared that his party, the Pakistan Muslim League-Nawaz, would emerge as winner of the election. Photograph:     Tyler Hicks/The New York Times.

Toppled in a 1999 coup, jailed and exiled, Nawaz Sharif has made a triumphant election comeback and today was heading for a third term as Pakis(...)