Since 2003 the country entered a second oil boom, and petroleum, petrochemicals and natural gas continue to be the backbone of the economy. Tourism and the public service are the mainstay of the economy of Tobago, though authorities have attempted to diversify the island's economy. A corruption scandal resulted in Manning's defeat by the newly formed People's Partnership coalition in 2010, with Kamla Persad-Bissessar becoming the country's first female Prime Minister. However, corruption allegations bedevilled the new administration, and the PP were defeated in 2015 by the PNM under Keith Rowley. In August 2020, the governing People's National Movement won general election, meaning the incumbent Prime Minister Keith Rowley will serve a second term.