Andy Burnham, a former government minister and ex-mayor of Greater Manchester, is set to become the U.K.'s next prime minister following Keir Starmer's resignation. Critics accuse the left-leaning Burnham of political opportunism and inexperience with national security. Reform UK leader Nigel Farage says Burnham lacks a national mandate. Farage recently told Fox News Digital: "I don’t even know what his policies are. Literally, I don’t."