Prime Minister's dismal approval rating of 32% by the end of her first month. In the last quarter of 2009, many public officials, as well as members of the boards of various government agencies, became suspected of participating in corrupt activities. An unprecedented number of officials were detained and arrested under these allegations which resulted in both praise and criticism of Kosor's government. The praise was mostly directed by those who believed that the government had finally taken a stronger stance against political corruption, while others criticized the fact that most suspects were, in fact, members of Kosor's own Croatian Democratic Union. The Opposition accused the government, especially the Prime Minister, for political responsibility claiming that it was impossible that Kosor didn't know what was happening around her when she was a Vice President of the government almost seven years before becoming Prime Minister. The accusations grew louder as more and more corruption affairs were tied with the former Prime Minister Ivo Sanader. On 30 October 2009 Damir Polančec, member of the HDZ Presidency, resigned as Deputy Prime Minister and Minister of the Economy following allegations of corruption. On 3 January 2010, Ivo Sanader announced he was returning to active politics saying it was a mistake he ever left. He accused Kosor and the members of the HDZ Presidency of failed leadership citing Andrija Hebrang's poor result in the first round of the presidential election held just a week earlier. Hebrang received, for HDZ as the largest party in the country, an embarrassing 12% of the votes claiming third place, the lowest result for an HDZ presidential candidate ever. Ivo Josipović, the candidate of the largest opposition party, the Social Democratic Party, won a landslide victory in the resulting runoff on 10 January. Most political pundits, as well as the majority of the public, believed the true reason of Sanader's surprise return was fear that he will eventually be tied with the numerous corruption scandals which have emerged since he left office. On 4 January, the day after Sanader's coup as it was called by the press, the HDZ Presidency decided to evict Sanader from the party. The Croatian public quickly rallied in support of Kosor against the hugely unpopular former prime minister, resulting in the highest support for any Prime Minister since polling began, topping at 77% by the end of February. Throughout 2010, the economy topped corruption as