During the ongoing Venezuelan presidential crisis concerning who is the legitimate President of Venezuela, reactions and responses to the crisis have been divided. On 10 January 2019, Venezuela's opposition-majority National Assembly declared that incumbent Nicolás Maduro's 2018 reelection was invalid, and its president, Juan Guaidó, said that he was prepared to assume the acting presidency. On 23 January 2019, Guaidó and the National Assembly declared he was acting president, who took the presidential oath.