Turkish President Recep Tayyip Erdogan has claimed victory following this week’s referendum that would would replace the country’s parliamentary system with a powerful presidential system — a move that could let him stay in office until 2029. Following a close vote — 51.4% for “yes” vs. 48.6% for “no” — international election monitors noted election irregularities and indicated that the vote was not a true measure of popular will. Chief among the problems they cited was media domination by the “yes” campaign. Opposition parties have demanded recounts. The referendum will do away with Turkey’s parliamentary system, instead turning to an executive presidency with few curbs on the power of that office. The vote followed a failed coup in July 2016, and members of the opposition contend there has been a campaign of intimidation by Erdogan supporters to sway the vote that included the jailing of some journalists and opposition leaders.…