Egypt's Sisi wins election, faces economic challenges

By Stephen Kalin and Maggie Fick CAIRO (Reuters) - Former Egyptian army chief Abdel Fattah al-Sisi won a landslide victory in a presidential election on Thursday but a low turnout threatened to deprive him of the strong mandate he needs to fix the economy and face down an Islamist insurgency. Sisi won 93.3 percent of votes cast, judicial sources said, with most ballots counted after three days