DLP under Errol Barrow, who had been highly critical of the US intervention in Grenada. Barrow, too, died in office, and was replaced by Lloyd Erskine Sandiford, who remained Prime Minister until 1994. Owen Arthur of the BLP won the 1994 Barbadian general election, remaining Prime Minister until 2008. Arthur was a strong advocate of republicanism, though a planned referendum to replace Queen Elizabeth as Head of State in 2008 never took place. The DLP won the 2008 Barbadian general election, but the new Prime Minister David Thompson died in 2010 and was replaced by Freundel Stuart. The BLP returned to power in 2018 under Mia Mottley, who became Barbados's first female Prime Minister. Transition to republic The Government of Barbados announced on 15 September 2020 that it intended to become a republic by 30 November 2021, the 55th anniversary of its independence resulting in the replacement of the hereditary monarch of Barbados with an elected president. Barbados would then cease to be a Commonwealth realm, but could maintain membership in the Commonwealth of Nations, like Guyana and Trinidad and Tobago. On 20 September 2021, just over a full year after the announcement for the transition was made, the Constitution (Amendment) (No. 2) Bill, 2021 was introduced to the Parliament of Barbados. Passed on 6 October, the Bill made amendments to the Constitution of Barbados, introducing the office of the President of Barbados to replace the role of Elizabeth II, Queen of Barbados. The following week, on 12 October 2021, incumbent Governor-General of Barbados Sandra Mason was jointly nominated by the Prime Minister and Leader of the Opposition as candidate to be the first President of Barbados, and was subsequently elected on 20 October. Mason took office on 30 November 2021. Prince Charles, who was heir apparent to the Barbadian Crown, attended the swearing-in ceremony in Bridgetown at the invitation of the Government of Barbados. Queen Elizabeth II sent a message of congratulations to President Mason and the people of Barbados, saying: "As you celebrate this momentous day, I send you and all Barbadians my warmest good wishes for your happiness, peace and prosperity in the future." A survey was taken between October 23, 2021, and November 10, 2021, by the University of the West Indies that showed 34% of respondents being in favour of transitioning to a republic, while 30% were indifferent. Notably, no overall majority was found in