Bulgaria's presidential run-off has been won by Rosen Plevneliev, the ruling conservative party candidate. Preliminary official results show he polled 52 per cent. His Socialist rival Ivailo Kalfin won 47.4 per cent. The victory will likely strengthen Prime Minister Boiko Borisov's hand before a 2013 general election in the EU's poorest country. ... http://www.euronews.net/