In February 2005, President Mutharika split with the United Democratic Front and began his own party, the Democratic Progressive Party, which had attracted reform-minded officials from other parties and won by-elections across the country in 2006. In 2008, President Mutharika had implemented reforms to address the country's major corruption problem, with at least five senior UDF party members facing criminal charges. In 2012, Malawi was ranked 7th of all countries in sub-Saharan Africa in the Ibrahim Index of African Governance, an index that measures several variables to provide a comprehensive view of the governance of African countries. Although the country's governance score was higher than the continental average, it was lower than the regional average for southern Africa. Its highest scores were for safety and rule of law, and its lowest scores were for sustainable economic opportunity, with a ranking of 47th on the continent for educational opportunities. Malawi's governance score had improved between 2000 and 2011. Malawi held elections in May 2019, with President Peter Mutharika winning re-election over challengers Lazarus Chakwera, Atupele Muluzi, and Saulos Chilima. In 2020 Malawi Constitutional Court annulled President Peter Mutharika's narrow election victory last year because of widespread fraud and irregularities. Opposition leader Lazarus Chakwera won 2020 Malawian presidential election and he became the new president.