TOPSHOT - Britain's Prime Minister Boris Johnson, wearing a face covering due to the COVID-19 pandemic, leaves 10 Downing Street in central London on November 26, 2020, after coming out of self-isolation following contact with an MP who tested positive for coronavirus. - Britain's government on Wednesday unveiled plans to slash the foreign aid budget to help mend its coronavirus-battered finances, prompting one minister to quit and defying impassioned calls to protect the world's poorest people. (Photo by Tolga Akmen / AFP)