hi Sunak, who will become the next UK prime minister within hours, has issued a plea for unity in the face of a "profound economic challenge".<br /><br />He won the Tory leadership contest after rival Penny Mordaunt failed to secure enough backing from MPs.<br /><br />In his first speech, Mr Sunak said bringing his party and the UK together would be his "utmost priority".<br /><br />Mr Sunak, 42, will be the UK's first British Asian prime minister and the youngest for more than 200 years.
