ATHENS Voting began Sunday in Portugal's snap elections, the third in less than four years, to elect a new government. Voters will cast votes to elect 230 seats, which were allocated in 22 constituencies by the election system that is the d’Hondt method -- appointing seats in parliament among federal states or in proportional representation among parties. Opinion surveys predict a neck-and-neck race between the centrist Democratic Alliance (AD), led by the Prime Minister Luís Montenegro, and