Another election, another surprise. Actually, two elections, in two countries last weekend, with surprisingly pleasant surprises. And in two very large countries: Turkey (population 82 million) and Mexico (119 million), both very important to the United States. In the runup to the Turkish election, speculation in English-speaking publications centered on whether President Recep Tayyip Erdogan's AKP party would get a large enough majority in the parliament to amend the constitution without a popular referendum. The AKP, usually described as mildly Islamist, has been in power since 2002. In some respects it has compiled a record that compares favorably with those...