ANKARA — President Tayyip Erdogan appealed for support from Turkish voters in final campaign rallies on Saturday, the eve of a referendum which could tighten his grip over a country bridging the European Union and a conflict-strewn Middle East.
Opinion polls have given a narrow lead for a “Yes” vote in Sunday’s referendum to replace Turkey’s parliamentary democracy with an all-powerful presidency, a move Erdogan says is needed to confront the security and political challenges Turkey faces.
