Bulgarian Prime Minister Boiko Borissov, whose party GERB came to power in July 2009, ended May 2010 with an approval rating of close to 65 per cent, the National Centre for the Study of Public Opinion said on June 2 2010. Bulgarian news agency Focus said that the survey was done between May 15 and 25 among 1000 respondents. In the past two months, Borissov's approval rating had been decreasing by about three per cent, for reasons including the economic crisis, the polling agency said. Borissov's party won about 40 per cent at the July 5 2009 national parliamentary elections, with key promises at the time being to counter the economic crisis and to fight organised crime and corruption effectively. His victory saw the 2005 - 2009 socialist-led tripartite coalition government fall from power, and Borissov formed a single-party minority government. According to the polling agency, respondents in the survey placed Interior Minister and Deputy Prime Minister Tsvetan Tsvetanov, a long-standing ally of Borissov, as the most popular Cabinet minister with 68.5 per cent approval. In second place was Culture Minister Vezhdi Rashidov, with 46.7 per cent, followed by minister for Bulgarians abroad Bozhidar Dimitrov with 43.1 per cent, Agriculture Minister Miroslav Naidenov 42.4 per cent, and Foreign Minister Nikolai Mladenov (who took up the portfolio in January 2010, having previously been Borissov's defence minister) at 42 per cent. The polling agency linked the popularity of the ministers to the fact that they had been in the limelight in the past month.According to the agency, were parliamentary elections to be held, all parties but one would return to the National Assembly, with GERB taking about 41 per cent of votes.Yane Yanev's Order Law and Justice party would fail to make it across the threshold, the poll found.