Voters in Slovakia were casting ballots on Saturday to decide a tight race for president. Opinion polls indicated a neck-and-neck contest between Peter Pellegrini, who is the current parliamentary speaker, and the former foreign minister and diplomat Ivan Korčok. The incumbent Zuzana Čaputová did not run for a second five-year term despite her continued popularity. The office of president has a largely representative function in Slovakia, which is a member of both the European Union and NATO. Pellegrini’s Voice – Social Democracy party (Hlas-SD) is part of Slovakia’s governing coalition, led b…